Taylor Kinney and Lady Gaga are "kindred spirits".
The 32-year-old actor, who has been dating the 'Applause' hitmaker for almost three years, believes their relationship works because they bond over their similar interests.
Speaking to Glamour magazine, he said: "I think we just complement each other. I'm proud of her, and I'd like to believe she's proud of me. We're kindred spirits."
Despite juggling their hectic schedules, the couple take time aside regularly to enjoy each other's company.
Asked what they do together when they have time, Taylor explained: "We'll hike together. I'm always giving her flak, like, 'Babe, you can't wear your heels when we're hiking.' We've been painting a bunch lately too ... There's a lot of laughing. I think that's the basis of a healthy relationship."
Meanwhile, 'The Other Woman' star is rumoured to be planning to propose to the 28-year-old singer - whose real name is Stefani Germanotta - in the near future, but hasn't found the right engagement ring yet.
A source recently said: "Taylor's been looking at engagement rings for Stef for a couple of months.
"He has told a couple of his close guy friends that he wants to propose soon."

Nicole 'Snooki' Polizzi is expecting a baby girl.
The 26-year-old star announced today (08.05.14) that she and her fiancé Jionni LaValle, who already have one-year old son Lorenzo, have a little daughter on the way.
The former 'Jersey Shore' beauty shared their happy news via a sweet video, which was posted on her blog, featuring Lorenzo and herself as they discovered the sex of the tot.
Snooki, who found out she was expecting a daughter after Jionni, said in the clip: "Hey guys, it's Nicole, and I'm with my son Lorenzo, and Jionni knows what we're having and he put balloons in a bin for us, so we're going to find out what we're having right now. We're so excited."
The brunette beauty then lifted the lid on the bin to see pink balloons pop out in front of her face.
She added afterwards: "Oh my Goodness, we're having a girl. Yay, oh God, kill me. We're having a girl."
Snooki previously revealed she and her friend JWoww, who is also expecting a baby girl, were initially worried about having daughters because they didn't want them to inherit their wild personalities.
She said earlier this year: "They are going to be raging crazy women! They are going to be just like us. That's why I'm scared to have a girl."
Snooki is set to welcome her second child into the world in September, while JWoww is due to give birth in July.

Zac Efron has sold his $2.8 million home in the Hollywood Hills.
The 'Bad Neighbours' actor, who held many parties at the property in Southern California, has upgraded to a bigger home with a $3.995 million price tag in the same area.
According to RadarOnline.com, the 26-year-old star bought his old property in 2008 for $2.35 million and made $425,000 on the sale.
The house has two bedrooms and three bathrooms, along with a huge swimming pool and boasts stunning canyon views with plenty of privacy near the back patio.
It features 2,424 square-feet of living space and heated floors.
Zac has been making a number of changes in his life in an attempt to leave his wild ways behind after two stints in rehab last summer.
He recently opened up about his "never-ending struggle" with drink and drugs and insists he's in a better place now and attends regular Alcoholics Anonymous (AA) meetings.
Zac said: "I think it's changed my life. I'm much more comfortable in my own skin. Things are so much easier now. I've never been this happy before."

Justin Theroux wants a non-alcoholic wedding.
The Hollywood hunk reportedly wants his fiancee Jennifer Aniston to cut down on her alcohol consumption, since she's able to "easily" down a "bottle of wine", and has even suggested an alcohol-free wedding but the former 'Friends' actress isn't keen on the idea.
A source told RadarOnline.com: "Jen is totally capable of quitting and has never gotten into trouble with her love of vino but Justin doesn't like how she'll easily down a bottle of wine a night without batting an eyelid
"He really wants her to quit and has been pushing for a non-alcoholic wedding - an idea that was met with great laughter by Jen and her girl crew."
Justin, 42, is becoming increasingly health conscious as he ages and is said to want to make Jennifer, 45, "stop drinking entirely".
The insider added: "Everyone knows that Jennifer loves wine, but Justin would really like her to stop drinking entirely.
"The older Justin gets, the more he's become a super health freak, and he wants Jen to follow suit. She's definitely slowed down her drinking since she and Justin hooked up, but she still loves two or three glasses of wine every night. Justin's hope is that she's going to give that up soon."

Mariah Carey claims her daughter "out-divas" her.
The 'Hero' hitmaker is known for her demanding ways - with her backstage demands previously including things such as having her dressing room painted white and requesting 20 white kittens and 100 white doves - but says three-year-old Monroe is much more high-maintenance.
She said: "Miss Monroe, the little princess, she way out-divas me, she wins. I have a picture of her in the womb like this, with her arms behind her head, it's an ultrasound and she's posing."
Meanwhile, the 44-year-old singer also admitted she is keen to enrol Monroe's twin brother Moroccan into boxing lessons as he has started hitting other children, even ones who are bigger and older than he is, reminding her and her husband Nick Cannon of Sylvester Stallone's famous boxer character Rocky, with who her son shares a nickname.
Speaking to TV talk show host David Letterman, she said: "I like the name Rocky actually, but I didn't want to name him Rocky and that's what we call him, and he likes to call himself Rocky. But now he's punching kids though, and that's the problem.
He's only three, they're bigger and older than him and he's knocking them out the box. He has to learn to respect, but he's too young for the classes."
And Mariah often finds herself in the middle of spats between her children.
She said: "They do get along well but they fight and sometimes I'm in the middle of it."

Kim Kardashian and Kanye West can't marry until they finalise their pre-nuptial agreement.
The couple were rumoured to have tied the knot in a secret ceremony at the weekend as their planned Paris nuptials later this month won't be legally binding, but insiders say they haven't yet got their documentation in order to carry out the official ceremony yet.
Kim and Kanye - who have 10-month-old daughter North together - are not set to sign the pre-nup until some time next week, but insiders told TMZ the delays are not because they can't agree on how to divide their assets in the event their marriage dissolves, but because there is so much to sort out.
And the paperwork is particularly complicated because the 'Bound 2' rapper recently changed management teams.
Kim recently slammed claims she and Kanye have already married, and also revealed that, unlike her doomed union with Kris Humphries - who she was married to for just 72 days in 2011 - the ceremony won't be shown on 'Keeping Up with the Kardashians'.
She tweeted: "Seeing so many different reports not gonna start disputing them all but a few I want to straighten out...
"1. We are not married yet!
"2. We are not filming our wedding for Keeping Up With The Kardashians.
"You will see everything leading up til and after!
"As much as we would love to share these memories on camera, we've decided to keep this close to our heart & share thru photos
"3. No guest list has been released. Seeing fake ones. Especially not 1600 people invited like I just read. Its VERY small & intimate (sic)".
It is believed the loved-up duo will be forced to legally wed in California before their romantic bash in Paris as French law requires a strict 40-day residency before they can get married in the country.

Kelly Osbourne calls Joan Rivers "Grandma".
The 29-year-old star grew up without her grandparents in her life, so says her 80-year-old 'Fashion Police' co-host is the closest thing she has ever had to a grandmother, and was delighted when her friend told her that was how she can now refer to her.
Kelly wrote on her blog: "Growing up I never had grandparents. About two months ago during a taping of 'Fashion Police', there was some sort of technical difficulty.
"Joan turned to me out of nowhere and said, 'You have no idea how much I love you my darling!' I proceeded to tell her how mutual the feeling was and that she is the closest thing I have ever had to a grandmother! We both shared a little tear and then it was on with the show!
" The next morning I woke up to one of the most heartfelt emails I have ever received. The email was from Joan. Long email short (so I don't get too sappy) Joan told me that she was officially MY GRANDMOTHER!!! From now on I am to call her Grandma J! (sic)"
Kelly - who was hospitalised last March after suffering a seizure - is thankful for all the support she receives from Joan and her daughter Melissa.
She added: "If I need anything and I mean anything, Joan and Melissa are always there for me. She gives the BEST advice.
"When I was in the hospital after having a seizure she came to visit me almost every day. When I am sad she is one of the only people that can make my laugh.
"Joan is not just my boss she is my teacher, advisor, therapist, and closest friends but now she is now my Grandmother.
"Joan, I love you to death (just don't die yet ya old bitch) thank you for everything you have done for me. Thank you for always believing in me. I love you, I love you, I love you! (sic)"

Britain's Queen Elizabeth mingled with journalists at a charity event yesterday (07.05.14).
The monarch celebrated the 150th anniversary of the Journalists' Charity, which supports journalists and their families in need, and mixed newspaper editors, broadcasters and senior media executives.
The 88-year-old royal and her husband, the Duke of Edinburgh, attended the event at Stationers' Hall in London and Prince Philip joked with young reporters that they "don't get paid enough".
The event, which also saw the Culture Secretary Sajid Javid attend, recognised the achievements of the Journalists' Charity, which has been in operation since 1864 and the Queen is a patron.
Laurie Upshon, the charity's chairman, said: "The visit cements a connection that goes back 150 years.
"The Royal Family have been very good supporters of the charity since the very start, Queen Victoria actually donated £50 three times."

Channel 4 is launching a new show where couples will marry after meeting for the first time.
The programme, titled 'Married at First Sight', is based on a Danish series of the same name and will explore whether or not science can help people determine who 'the one' is.
A statement on the Channel 4 website reads: "The vast majority of us are brought up to assume that love is something that just happens, but there are now 15.7 million single adults in the UK and marriage is at an all-time low (2011 census, office of national stats). Have marriage and monogamy had their day. Have we forgotten how to fall in love? Is it really possible to 'choose' to fall in love?"
The couples are chosen from a pool of 200 people, who are paired together with the help of scientific and sociological criteria.
A panel of experts who can analyse psychology, psychotherapy, social and evolutionary anthropology and theology will also be involved to determine whether they're well suited.
'Married at First Sight' will follow the couples for the first six weeks of their marriage but at the end of the filming period the couples have to decide whether or not they really want to be committed to one another forever.

Matt LeBlanc took on the lead role in 'Episodes' to stop David Schwimmer getting it.
The 46-year-old actor portrays a fictional version of himself in the comedy series - which is written by 'Friends' creator David Crane and Jeffrey Klarik - and he has joked he decided to accept the part so Crane didn't get his friend and former co-star Schwimmer instead.
Recalling when he was approached about the project, LeBlanc said: "I was at home and trying to reassemble my normal life (after 'Friends') and Jeffrey Klarik and David Crane called me and he said, 'I've got an idea.' Obviously I'd had a great experience with David. We got together for lunch and they pitched me the whole first season with nothing written on paper just off the top of their head , usually you have a pilot idea. They went through it ... and at the end it was a high five moment. I said, 'That sounds awesome.' My only reservation was that it was me playing myself, that seems a little strange I don't feel comfortable with that. They said, 'It's not a documentary, it's a scripted character anything you don't like we can lose.' It's kind of loosely based on me but it's really the public's perception of a celebrity ... To get to work with David again and Jeffrey was too good an opportunity. I was almost like, 'Gosh, if I don't say yes, they'll go to Schwimmer. I can't let him have it!'
LeBlanc admits it could be easy to be offended by at the jokes that are aimed at him in the series - which also stars Stephen Mangan and Tamsin Greig - but he always reminds himself that he's just playing a character that shares his name.
During an appearance on 'This Morning' today (08.05.14), LeBlanc said: "Quite often I'm the brunt of the joke and they take pot shots at me but I don't look at it that they're taking shots at me, they're taking shots at that character in the show. To me I have to look at it as a fictitious character."

Mario Falcone has met an "amazing" new girlfriend.
The 'TOWIE' star - who was previously engaged to Lucy Mecklenburgh - fell for the mystery lady during a recent trip to Dubai and he is so besotted with her he is flying back to the UAE to see her again within the month.
During an interview on 'This Morning', he revealed: "I got back from Dubai two days ago, I went there with friends ... and I've been trying to find a girlfriend for ages. It's been a struggle as I couldn't find someone I could connect with like Lucy, I was trying too hard so I went to Dubai to have some boy time. But the second day I met this girl called Sophie and she was amazing."
Mario was then stopped in his tracks by host Phillip Schofield, who told him: "Do me a favour - don't talk about her any more ... if it's going to be the special one then save it for you."
To which Mario replied: "Yes. I'll be flying back there in three weeks."
Mario also spoke candidly about his suicide attempt with pills and battle with depression, admitting his split from Lucy and the fallout sent him into a negative spiral.
He explained: "I got myself in a really bad rut, a monotonous routine and things weren't going well with Lucy at the time. And this was eighteen months ago ... I was quite down, I wasn't training and doing the things I enjoyed before ... The suicide attempt was more circumstance - my life had gone from being perfect to being in tatters ... but I look back at that now and wonder how I ever got into that place. I was embarrassed about what I'd done."
Mario, 26, has been able to beat his depression with the help of therapy and also revealed he has been inspired to settle down by his baby nephew Buzz, his sister Giovanna's son with her husband, McFly star Tom Fletcher.
He said: "I look my nephew who is eight weeks old today (08.05.14) and if I can love someone that much, I can't wait to have kids. That would mean for me to settle down and find someone I can have kids with and be part of my family ... I want what Giovanna and Tom have got."

Kasabian think bands care too much about what people think and are "scared" to themselves out there.
The band - made up of frontman Tom Meighan, guitarist Serge Pizzorno, bassist Chris Edwards and drummer Ian Matthews - feel other bands are too worried about their reputations and upsetting people.
Serge told Short List magazine: "Bands are so frightened about the comments they receive on YouTube, they're scared of putting themselves out there.
"And that's a dangerous thing, because you get people that are self-aware with every move they're making. They give a f*ck too much."
The musician claims it's people like American artist Hunter S. Thompson and actor Jack Nicholson who are the more powerful because they don't care what people think.
He explained: "They're your boys! The ones that do sh*t and you go 'Ooh mate, what's that?' and they go, 'I don't give a f*ck'. It's that that's so dangerous and exciting."
Meanwhile, the band are set to play a huge homecoming gig in Leicester this summer after the release of their fifth album '48:13' and have been trying to secure the concert for years.
Tom said: "We wanted to do it at the football club, but there were too many restrictions.
"At the council we banged the door and banged it and banged it."
Serge added: "This time they were like, 'okay, this could be a good idea', and we done 50,000 tickets in two days. To do it in Leicester is the most unfashionable thing, but so us. We are Leicester."