'Twilight's' Robert Pattinson tells Kristen Stewart: me or your boyfriend!

OK! Magazine reports that Robert Pattinson and Kristen Stewart bunked in a romantic two-bedroom cottage called the Valentino at the Charlie, a West Hollywood hotel, the night of the MTV Movie Awards.

But while there may have been some kissing going on, there was probably also a lot of talking...

Seems Stewart is still involved with her longtime boyfriend, Michael Angarano.

Wow. We haven't had a threesome like this since Brad Pitt was purportedly hanging out with Angelina Jolie while still married to Jennifer Aniston.

OK! reports that Pattinson has finally gotten so frustrated with this situation that he asked her to choose between himself and Angarano.

"If Kristen isn't interested in a serious relationship, she needs to tell him so he can move on," says one source.

He wants her to decide while he’s in New York filming "Remember Me," an indie about star-crossed lovers, featuring “Lost” cutie Emilie de Ravin. Coincidentally -- or not -- the pretty blond actress and her husband, Josh Janowicz, are getting divorced.

"He's asked her to choose between him and Michael this summer," the source says. "Robert's not willing to be strung along."

See More : http://latimesblogs.latimes.com/thedishrag/2009/06/robert-pattinson-asks-kristen-stewart-to-decide-me-or-your-old-boyfriend.html