Kristen Stewart is reportedly “torn between” her Twilight co-star Robert Pattinson and her longtime boyfriend (they have been dating 5 years) Michael Angarano. Insiders claim the actress is beginning to fall for Pattinson.

“Robert and Kristen spent a lot of time alone together when they filmed the first Twilight movie — they’d stay up most of the night talking, laughing, playing music. Although [Robert] knew Kristen had a boyfriend, he made no secret of the fact that he was crazy about her,” says the source. “Kristen and Robert hit it off the minute they were introduced. When they auditioned together for the first time [back in 2007], sparks flew. The problem is, she’s torn between her onscreen and off-screen loves.”

Michael, for his part, has had enough of the scuttlebutt. “A lot of guys would not be as understanding as Michael has been,” says the friend. “But one thing Michael is not quite as understanding of is all the gossip about her and Pattinson.”

Stewart and Pattinson have insisted the rumors are not true and say they are “just friends.” The pair has been filming the Twilight sequel New Moon for the past several months.

Source