The big question that Twilight fans have been asking is are Rob Pattinson and Kristen Stewart a couple in real life? Fellow co-stars say no, while other insider say they are absolutely in love.

Rob supposedly gave Kristen an ultimatum, him or her boyfriend Michael Angarano. While Kristen is in L.A. working on her new movie The Runaways, Rob is in Manhattan filming Remember me, and this distance finally made her make up her mind and she picked Rob.

The new couple supposedly talks to each other everyday, missing each other like crazy. Rob misses Kristen so much that he even asked her and their New Moon co-star Dakota Fanning to come visit him in New York.

What happens now with their new realtionship and the chemestry between Edward and Bella?

“For Rob, half the attraction with Kristen was the chase,” an insider reveals. “He pursued her so heavily — being a crazy romantic, proposing marriage and everything. Now that Rob’s with her, it’s just anticlimactic.”

If Rob loses interest, it could have a major negative impact on the next three movies in the Twilight series, New Moon, Eclipse and Breaking Dawn.

Ashley Greene, a.k.a. Alice Cullen, tells Life&Style magazine, “People are just so enamored with the connection that they portray on-screen. If they failed to do that in the second and third ones, I think we’d be in trouble. They’re great on-screen, and obviously they get along. But maybe they should just not be a couple until after the fourth movie, Breaking Dawn.”

“I get little crushes on a lot of people who I work with. You have to make yourself believe there’s something about them that you love.”