With Twilight fever blazing as fans count down the days to the Nov. 20 release of New Moon, there’s one thing that’s cooling down in Twi-world — the romance between the films’ stars, Robert Pattinson and Kristen Stewart!

In the new issue of OK!, those close to the superstar pair reveal what drove them apart and whether or not they still have a future.

According to a friend of the couple, R-Pattz has been getting too serious too quickly for the likes of 19-year-old Kristen.

“Rob was talking marriage,” says the source, who explains that the relationship was also stealing all of Kristen’s attention and keeping her from spending time with her friends and family. “She told him they need to take a break.”

Additionally, with Eclipse wrapping this week, there’s been much tension about the logistics of a transatlantic romance, with Kristen wanting Rob to make the move to L.A. and the UK-based hunk preferring to stay far away from Tinseltown.

Rob was talking marriage…hahahahaha, that’s pretty funny.

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