Cressida Bonas split from Britain's Prince Harry because she didn't enjoy the constant scrutiny.
The couple ended their romance this week after two years of dating, and friends say the 25-year-old heiress wanted out of the "serious" relationship because she was tired of strangers taking her picture, and knew the attention would only get worse if she went on to marry the prince.
A source told The Sun newspaper: "Cressie doesn't want to be famous in any way. Her relationship with Harry was incredibly serious but she became sick of strangers taking pictures of her.
"She started to think about how her life would be if she was a princess -- and she jumped ship."
The source believes the couple will eventually get back together once Cressida has taken time away to consider their future.
They added: "However, Harry and Cressie still love each other. Only a brave man would bet on them not getting back together.
"Cressie is only 25 and has found the last two years overwhelming. She needs some time out of the spotlight to really think about what she wants. Harry has given her that time because he loves her.
"Cressie has been terrified by the thought of being a princess because it is just another world to her. She was like a deer in headlights.
"She loves Harry but she just wants some breathing space."

Britain's Prince Harry will meet World War II veterans on his official visit to Estonia and Italy. The 29-year-old prince will also speak with serving military personnel and competitors for the Invictus Games - a Paralympic-style competition for wound...

Zac Efron admits the fight he was involved in in March was the "most terrifying" time of his life.
The 26-year-old actor - who endured two stints in rehab last year - was recently involved in a mysterious altercation with a "homeless guy" in Los Angeles and admits he had never been more scared than when the man pulled out a knife.
Recalling the incident, he told The Hollywood Reporter: "I had a friend come pick me up late at night -- we were looking for a place downtown to get a bite and catch up.
"We were having trouble finding somewhere - a lot of places were closed - and the car ran out of gas off the 110. It was ridiculous. We had to pull over, and I called Uber.
"[While waiting] a homeless guy, or vagrant, tapped on the driver's-side window. Before I knew it, he [my friend] was out of the car, and they started fighting."
Zac claims he got out of the car to help his friend - who was previously reported as being a bodyguard - "disarm" his opponent, and he was relieved when police arrived to diffuse the situation.
He added: "I saw that [the homeless man] was carrying some sort of a knife, or shank, and I got out of the car to disarm him.
"At some point, he dropped the knife, and I got hit pretty hard in the face - and almost instantly the police were there to break up the fight...
"It was the most terrifying moment of my life."
Following the terrifying incident, friends of the 'Neighbors' actor - who broke his jaw in a fall at home last November - admitted they were worried about his sobriety and questioned the intentions of his pal, who they claimed was actually a drug dealer.

Amanda Seyfried doesn't think her relationship with Dominic Cooper could have lasted "long-term".
The 'Mamma Mia!' co-stars split in 2010 after around two years of dating, but the 28-year-old actress thinks they were always too different to stay together for long.
She admitted: "It would never have worked long-term. I'm too uptight for him. Or he's too relaxed for me.
"He's been with the same girl for ages. I hope they're happy."
The 'Lovelace' star also spoke about the debilitating effect anxiety and obsessive compulsive disorder (OCD) had on her when she was younger, admitting there were times she thought she was "crazy".
Speaking to the new issue of Britain's ELLE magazine, she said:
"I feel terrible for the younger me, because I thought I was crazy. Where was the fear coming from? It doesn't make any sense.
"It becomes physical - I would get dizzy and cry and the lights were too bright.
"I had my anxiety and my OCD - a lot of kids have it. You're afraid of it; you're afraid of your brain."
And the stunning star - who is dating actor Justin Long - also admitted to having insecurities about her looks.
She said: "I would be lying if I said I wasn't constantly aware of what I'm doing with my body.
"I don't have to look like a supermodel. I don't have to have those abs - the camera doesn't see that. But because we have all been designed to want these things, I'm a victim of this stuff, too."

Paul Walker's daughter reportedly feels "betrayed" by her grandmother.
The late star's mother Cheryl Ann had dropped her petition to become legal guardian of 15-year-old Meadow after reaching an agreement out of court with the teenager's mother Rebecca Soteros, but a court has refused to dismiss the case.
Appointing an attorney for Meadow and ordering an investigation into her care, Commissioner David Cowan said yesterday (30.04.14): "It is up to the court to decide whether guardianship case should be granted or denied."
And Meadow - who had been staying with Cheryl Ann when her father was killed in car crash - is said to feel "betrayed" that her grandmother applied for guardianship without consulting her, arguing Rebecca had an alcohol problem and was unable to care for the teenager, and is also "hurt and unhappy" that she wasn't told her dad's brothers Cody and Caleb will appear in 'Fast & Furious 7'.
Meadow, who moved to California from Hawaii in 2011 to be closer to her father is currently staying with a family friend but wants to move back in with her mother.
A source told E! News: "Meadow is doing well and still in school and spending time with her friends like any teenager.
"She soon hopes to move into a new home in the LA area with her mom."
It was previously reported that Cheryl had promised to abandon her custody bid if Meadow's mother sought treatment in rehab for her "serious drinking problem".
Rebecca promised to check into rehab immediately and also agreed to regular drug testing after completing her stint as being with Meadow is the "most important thing" to her.
The youngster is set to inherit Paul's entire fortune of a reported $25 million after he named her as the sole beneficiary in his will.
The star also appointed his father, Paul Walker Sr., as the executor, and stated that Cheryl should become Meadow's legal guardian.

Carrie Underwood's husband "stays out of her way" when she's working on her music.
The singer's spouse Mike Fisher preoccupies himself while she's going through "that whole creative process" and has been enjoying the time he has alone.
The sportsman said: "She's [Carrie] actually real busy doing a lot of writing and stuff.
"I've been just kind of hanging out, just kind of being home and enjoying that.
"I stay out of her way. I go golfing or go fishing or something."
Meanwhile, the country singer gets "jacked up on caffeine" to help her focus.
Carrie said: "He stays away. That whole creative process is such a weird thing, and I've talked to other people in the music business and friends and what they do and we all kind of have our own 'isms.'
"I go in and I'm like caffeinated. I get jacked up on caffeine and then I come home and crash."
The blonde beauty - who was catapulted to the spotlight after winning 'American Idol' in 2005 - is excited about sharing her fifth studio album with her fans and insists it's different to her previous records.
Carrie told Us Weekly magazine: "I've been writing quite a bit, it's exciting!
"It definitely has a different sound. There are some thematic things that are quite different. I love strong women. So I want things that I can get on stage and just feel empowered."

Simon Cowell has been urged to axe Louis Walsh from 'The X Factor'.
ITV bosses have asked the 54-year-old music mogul - who is set to make a comeback on the singing contest alongside Cheryl Cole this year - to get rid of the veteran judge, who has appeared on all 10 previous series, to ensure the panel is "strong" in the new series.
A source told The Sun newspaper: "What we've said is we want the panel to be as strong as it can be and if that means getting rid of people who have been on it before, so be it.
"The show is going through a creative renewal with Simon and Cheryl Cole back, so it's only right we make it as good as we can.
"It's not just Simon's show - it's ITV's, so we have a big say.
"It was ITV boss Peter Fincham that helped broker the deal for Cheryl to come back."
However, it seems Simon is keen to have Louis back.
A source added: "Lots of people have been spoken to about 'The X Factor' panel, but that's just to find the fourth judge, not replace Louis.
"Simon wants Louis back but he's conscious he has to play along with ITV's wishes. It's hard enough finding one new person, let alone two, so he's confident he'll get his way."

Oliver Proudlock likes to keep his romance separate from 'Made In Chelsea'.
The reality TV star excludes himself from the dramatic love dramas that co-stars Jamie Laing and Spencer Matthews get entangled in, and he's admitted it's because he's dating model Grace McGovern off-screen.
Despite claiming she could appear on the E4 show in the future, Proudlock is keen to keep their relationship private for now.
He told the Daily Mirror newspaper: "I don't have romantic storylines as I have a girlfriend off the show. Right now we're happy keeping our relationship away from the camera. But I wouldn't rule it out in the future."
The 27-year-old fashion designer - who previously admitted he'd like to make a spin-off show with his co-stars and close pals Jamie Laing and Francis Boulle - has his own label Serge DeNimes, which he'd like to showcase at London Fashion Week, but he's confessed he wouldn't ask any of his co-stars to feature in the catwalk show.
He said: "I'd love to show at London Fashion Week next year. But I wouldn't get any of the 'Made In Chelsea' cast members to model, though."

Emmerdale's Kerry Wyatt will fake a terminal illness in order to get her dream wedding.
The wayward mum, played by actress Laura Norton, is set to shock fans of the ITV soap by pretending to have a life-threatening disease in order to win a contest for an all expenses paid ceremony because she feels insecure about her boyfriend Dan Spencer's (Liam Fox) reluctance to propose.
Laura told The Sun newspaper: "When Kerry is teased by the factory girls about not getting married, she decides to prove that she can. She starts dropping hints and goes on eBay to buy a wedding dress. It costs her £12 and looks more like underwear. But the most outlandish thing she does is enter a contest to win a dream wedding.
"She writes this long essay about how she has a life-threatening illness, which she then performs to a video camera while wearing a wedding dress and veil. This mad desire for a wedding - as ridiculous as it is - is totally believable because Kerry is so insecure and can't understand why Dan won't propose to her."
Since joining the country-based show two years ago, Laura has noticed a marked difference in which viewers have responded to her alter-ego, and believes the full extent of Kerry's vulnerable side has yet to be seen.
She explained: "Kerry has many layers and we're still only scratching the surface. It'd be nice if we exposed why she makes all these terrible decisions. She is one of those people who will always be complicated."

'Hollyoaks' star Modupe Adeyeye was "excited" by her transgender storyline.
The soap newcomer - who plays Blessing Chamber - insists she wasn't nervous about playing a transgender character in the Channel 4 soap and relished in the opportunity to sink her teeth into a gritty plot.
She said: "I'm not transgender so I've had to do a lot of research into it. I wasn't nervous, I was more excited. It's a big responsibility, but I always think that you should challenge yourself and not run away from things that are hard. When things are easy, that's when I get scared, because as an actor you need challenges, that's what makes you stronger and better in your craft."
Blessing will be desperate to keep her transgender secret from the residents of Hollyoaks village, but this proves a hard task when a private investigator begins digging into her past.
The character, who had a troubled youth including a stint in juvenile detention, has started a new life in Chester after cutting ties with her family.
Modupe explained to SoapSquawk.co.uk: "She was born Tyson Delaney. Tyson's parents always knew something wasn't right because he always wanted to play with the girls and their dolls. His dad would always tell him to stop because he was a boy and should be playing with other boys. So he rebelled to spite them.
"That's when Tyson started hanging around in gangs and doing stupid things, he got into trouble and went to a juvenile detention centre. When he came out that's when he decided he didn't want to live that life any more, he knew he wasn't being himself. So he decided to start a new life."

Mariah Carey has named her new album 'Me. I Am Mariah... The Elusive Chanteuse'.
The 44-year-old singer has announced the "personal" title for her 14th studio album, which will be released next month.
'The Elusive Chanteuse' is Mariah's latest nickname for herself, following previous monikers such as 'Mimi' and 'MC'.
The '#Beautiful' hitmaker says 'Me. I Am Mariah' is one of her most personal records to date as it chronicles the "peaks and valleys that have made who I am today".
The back cover of the album features a sweet drawing Mariah created when she was just three years old.
In a YouTube video announcing the title, the high-octave diva refers to the drawing as her "first and only self-portrait".
She explained: "It was a creative visualisation of how I saw myself, with the purity of a child's heart before it was ever broken."
The then three-year-old Mariah captioned the picture by scribbling, 'Me. I Am Mariah', which inspired the first half of her album title.
Mariah's latest album has suffered numerous setbacks after originally being set for release last year, following the success of her Miguel-assisted summer smash '#Beautiful'.
Two further singles, 'The Art of Letting Go' - which was also the album's original title - and 'You're Mine (Eternal)', were released but stalled in the charts.
The record will feature collaborations with Nas, Wale, Fabolous and even the singer's three-year-old twins, Monroe and Moroccan.

Mariah Carey's 'Me. I Am Mariah... The Elusive Chanteuse' tracklisting:

1. Cry.
2. Faded
3. Dedicated (feat. Nas)
4. #Beautiful (feat. Miguel)
5. Thirsty
6. Make It Look Good
7. You're Mine (Eternal)
8. You Don't Know What To Do (feat. Wale)
9. Supernatural (with special guest stars "Dembabies" a.k.a. Ms. Monroe & Mr. Moroccan Scott Cannon a.k.a. Roc 'N Roe)
10. Meteorite
11. Camouflage
12. Money ($ * / ...) (feat. Fabolous)
13. One More Try
14. Heavenly (No Ways Tired/Can't Give Up Now)

Pet Shop Boys are to open a string of boutique hotels.
The electronic pop duo are hoping to unveil a string of simple accommodations as part of their plan to expand on their own brand, X2, a record label they set up following their departure from EMI Records after 28 years.
Chris Lowe told the Daily Mirror newspaper: "Once you have your own logo, you start thinking the sky's the limit. Perfumes? Underpants? We've already decided we're going into hotels. Ours will be a basic range, like the White Company, nothing fancy."
Neil Tennant revealed they were inspired to buy their own estates after watching a series of property shows on television.
He explained: "The TV was on all the time when we were recording our latest album. I quite like 'Escape to the Country' actually."
Meanwhile, the 'West End Girls' hitmakers are set to unveil orchestral arrangements of their most famous hits at the BBC Proms on July 23, in addition to a piece inspired by wartime codebreaker, Alan Turing.
In a statement, the duo said: "It is an honour for us to be invited to present some new music at the Proms and to celebrate Alan Turing 60 years after his death."
Paloma Faith is also on the bill for the two-month festival, which takes place at London's prestigious Royal Albert Hall from July 18.