Robert Pattinson to Kristen Stewart: 'Don't Leave Me,' Rumor or Reality?

Robert Pattinson is apparently begging his girlfriend Kristen Stewart not to leave him. OK! Magazine has splashed the rumor across its front page with a subtitle claiming that Stewart is angry and confused and here's why.

A week ago, the Twilight star was spotted leaving a Hollywood bar with Disturbia actress Sarah Roemer, which immediately sparked rumors of a possible breakup between Pattinson and his co-star, who is currently in London for the filming of Snow White and the Huntsman.

The photos, however, do not reveal as much as the hype makes out. Ok! Claims the two were squeezed into a back seat and stroking hands, but a close look at the photos shows their hands aren't even touching. More, descriptions of the photos have missed one key detail: the actors were not alone. There was an additional passenger who was probably a mutual friend that has been in the club with them before.

Rob's one of the world's biggest heartthrobs, and Kristen's never been able to relax the whole time she's been with him, a so-called insider told OK!. This was, like, her worst fear realized.

The apparent source went on to say that Pattinson was in total panic over the thought of losing Stewart, apparently groveling for forgiveness on his knees.

Pattinson and Stewart have been one of Hollywood's most talked about couples since rumors of a relationship between the two started in 2008 when they began working together for the Twilight series. The couple is currently ranked number one in Pop Sugar's Favorite celebrity PDA moment of 2011 poll.

Last Sunday, Pattinson was spotted leaving a bar and getting into a car with Roemer in Los Feliz.. Pattinson looked scruffy with his overgrown beard, checkered shirt and a cap. That he and Roemer were photographed so closely inside the car has put doubt into his relationship.

Rob was literally fending off advances from girls, left and right. Every female in the bar wanted to get close to him and for the most part, he politely ignored them but one girl caught his eye and she left with him, a source told Ace Showbiz.

It was only last week that Pattinson was in London with Stewart, reportedly having several date nights and were still a happy couple.

Stewart confessed that she was dating Pattinson earlier this year, but since then the couple has kept extremely private about their relationship. Stewart told GQ magazine that she would never speak openly about her relationship.

'I don't worry about it at all. It's just one of those things. I'm selfish. I'm like, That's mine! And I like to keep whatever is mine remaining that way. 'It's a funny little game to play and it's a slippery slope. I always say to myself I'm never going to give anything away because there's never any point or benefit for me.'

Contrary to rumors, Gather.com claims that Pattinson's relationship with Stewart has been growing. In a recent interview with Hollywood Life he disclosed that his favorite part of filming the Twilight series was kissing his girlfriend.

It's becoming increasingly difficult to tell how much of Robsten's daily drama is real, according to Gather. How much is fantasy, and how much is a carefully constructed publicity campaign,