Dean McDermott has reportedly threatened to divorce Tori Spelling.
The 47-year-old reality TV star is tired of his actress spouse - with who he has children Liam, seven, Stella, five, Hattie, two, and Finn, 20 months - "playing the victim" following recent revelations he had cheated on her, and though she has stood by him through the scandal and subsequent rehab stint, he is said to be ready to pull the plug on their seven-year marriage.
A source said: "Dean has finally had enough and he is tired of Tori playing the victim.
"Yes, Dean cheated on her, but Tori definitely played a role in where their marriage was when that happened. For months, Tori has railed on Dean and he has taken it. However, Dean has had it. Now he is threatening her with divorce."
And Dean is said to be particularly unhappy with Tori's decision to film 'True Tori', her latest reality show in the midst of their difficulties.
The source added to RadarOnline.com: "There was a time when Dean would have done whatever Tori wanted, but this has gone too far.
"Publicly shaming Dean is one thing, but their four children are going to be able to watch the show when they are older and that really distresses him."
However, the 40-year-old star is said to believe Dean won't follow through in his threats.
The source said: "Tori doesn't think that Dean will actually pull the plug on their marriage.
"In her mind, she is the only one that can decide whether or not they will split up. She could be in for a very rude awakening."

Kate Hudson thinks relationships are "challenging".
The 35-year-old actress - whose four-year relationship with Muse frontman Matt Bellamy has been the subject of recent speculation they are on the rocks - believes it takes a lot of "work" to share life with another person, and thinks the secret to lasting commitment is to accept one another's flaws.
She said: "Relationships are the most challenging things.
"It's where you do the most work in your life. You come face-to-face with yourself, and if you can deal with realising we're all flawed, accept it and work with it, you might have a really amazing, lasting relationship."
Kate - who has 10-year-old son Ryder from her marriage to Chris Robinson and two-year-old son Bingham with Matt - thinks the way to make a relationship work seems "simple" but isn't so easy in practice.
Speaking to the new issue of Self magazine, she said: "If I look at my parents [Goldie Hawn and Kurt Russell], who've been together thirtysomething years, I'd say no matter what they've been through, they share similar values and really like each other..
"It sounds simple, but it's not."
And the 'Something Borrowed' star also admitted she doesn't think it is easy to be happy.
She said: "I think happiness is a practice. But not the sort you find in self-help books, where you smile and have a vision board. You're fooling yourself to think that's how you're going to find it.
"I love the idea of a gratitude journal, but there are times when mine turns into a venting journal. Not so grateful, just a big ol' vent!"

Jay Z's alleged extorter claims he actually saved the recordings from the "stupid" rapper.
Chauncey Mahan was detained by police on Friday (18.04.14) after reportedly blackmailing the '99 Problems' hitmaker, demanding $110,000 in exchange for recordings from 2002 and 2003 which he took while he was interning for the hip-hop star and are now said to be worth $30 million.
The former intern has now hit back at Roc Nation's claims he stole the tracks and was holding them ransom, telling TMZ the record label asked him to keep track of Jay Z's music because the 44-year-old star was just "a stupid kid smoking blunts" at the time, and was reckless with his intellectual property.
Chauncey insists he's repeatedly told Roc Nation he had the masters - which include 'I Just Wanna Love U (Give It 2 Me)' and 'Holla' - over the last decade and only requested the money last week when he could no longer afford to pay the storage fee.
He claims he only asked for the cash as compensation for keeping the recordings for 12 years in Northridge, California.
The LAPD took the ex-intern into custody late last week, but he was released pending further investigation and officers said they couldn't help until a police report was filed in New York since the recordings were never reported missing or stolen.
Roc Nation sent an employee to meet Chauncey at the storage locker, paying him $2,500 to open it, and were able to verify that the never-before-heard tunes were indeed Jay-Z's.
The so-called culprit also added that some of the masters sound "awful" in his chat with TMZ.

Courtney Cox insists it is impossible to reunite the 'Friends' cast.
The 49-year-old actress - who shot to fame playing Monica Geller in the hit sit-com - is adamant a reunion programme would never happen because she finds it difficult to even get former co-stars Jennifer Aniston, Lisa Kudrow, Matthew Perry, Matt LeBlanc and David Schwimmer together for social gatherings.
She said: "Let me tell you something: there's six friends and I've been trying to put together a cast dinner for 10 years. It doesn't happen! I can get the girls to come, maybe Matthew Perry. Matt LeBlanc canceled last time right at the last minute, Schwimmer lives here [in New York City], so it's just not gonna happen."
The 'Cougar Town' actress gets tired of being asked about a possible reunion because her answers always get her into "trouble".
Asked by talk show host David Letterman if she is tired of the questions, she said: "Only because once you say, 'Well, I'd like it,' then they have to contact every other cast member and be like, 'Courteney's into it!' And then I get in trouble. It's not going to happen."
And the brunette star doesn't think there is much scope for a reunion story if the cast agreed to return to the programme, which ended in 2004 after 10 years.
She said: "We did the whole show on a soundstage in Monica's apartment. So what are you gonna do?"

Kerry Katona's new baby stopped breathing for eight minutes after her birth.
The reality star and her fiancé George Kay were panic-stricken when their newborn daughter Dylan-Jorge turned blue and her heart stopped just moments after the delivery, and couldn't believe how quickly the happy moment had turned into a nightmare.
The 33-year-old blonde told Britain's OK! magazine: "We're over the moon George and I are both crying at how absolutely beautiful she is. Then I had a weird sensation that something wasn't right. She wasn't making a noise... but she was moving.
"Ten minutes after giving birth she was on my chest and she collapsed. She stopped breathing and her heart stopped."
George added: "Next thing the midwives are taking the baby off us and started reviving her. A crash team came running in and they took her to the other side of the room. Kerry's shaking and screaming, 'Where's my baby?' She was covered in fake tan at the time and the colour just drained from her.
"I leant across Kerry so she couldn't see what was going on. They were trying to revive Dylan, who was going blue behind me, and Kerry's just full of tears on the bed."
Dylan was miraculously revived, but things soon went from bad to worse as Kerry almost died when the placenta ruptured inside of her.
She recounted: "I was losing loads and loads of blood because the placenta didn't come out and it burst inside me. I was in shock. They manually took out the placenta.
"I was just screaming and lying on the operating table with all these lights above me. Then I start throwing up everywhere and George is crying. You bargain with God, 'Please let her survive and take me'. I thought, 'This is it, we're both going to die.' "
George explained: "In my lifetime I've seen some horrific things but the thought of losing your two most loved people at the same time... I was a mess."
Kerry - who already has daughters Molly, 12, and Lilly-Sue, 11, with her first husband Brian McFadden and Heidi, seven, and son Max, five, with second husband Mark Croft - has made a full recovery and is looking forward to spending quality time with the new addition to their family.

Former 'Baywatch' star Pamela Anderson enjoyed a date night with a mystery man at Crossroads restaurant in West Hollywood.

Lena Dunham showed off her legs in a pair of tiny shorts as she made her way onto the set of 'Girls' in New York City.

Katie Holmes looked stunning in a Zac Posen gown at the 'Miss Meadows' premiere in Chelsea, New York. The actress finished off her look with matching shoes and natural make-up.

Emma Watson covered up in oversize shades and a black beanie hat as she arrived at London's Heathrow airport. The 'Harry Potter' actress jetted into the capital from New York City.

Kim Kardashian flashed her thighs in a pair of ripped denim jeans as she visited a Starbucks in Calabasas, California. The 'Keeping Up With the Kardashians' star finished off her look with a pale pink blazer and heels.

Ariana Grande looked excited as she arrived at the 136th White House Easter Egg Roll. The singer was spotted wearing a pink oversized sweater with white platform boots as she arrived at the annual event in Washington DC.

Sofia Vergara was all smiles as she arrived for her appearance on 'Good Morning America' in New York. The actress showed off her curvaceous figure in a pale blue pencil dress.