David Schwimmer and Jennifer Aniston have gone from former Friends co-stars to former friends after Jennifer snubbed David’s fiancée in an interview.

Ross and Rachel had their fair share of problems, but the actors who played them always got along fine — until now.

David is set to marry his much younger girlfriend, photographer Zoe Buckman, but when Jen was asked about the upcoming wedding on the Late Show with David Letterman last week, Jennifer claimed she had “no idea” who the soon-to-be Mrs. Schwimmer is.

D’oh. Turns out Jen and Zoe have actually met a few times — a fact that David was none to pleased to Jennifer can’t remember.

“David was not impressed that one of his supposed friends didn’t know who he was marrying,” a friend close to the stars tattled to London’s Daily Mail this week. “He has been with Zoe for a couple of years and was offended Jen couldn’t remember her. He hasn’t been taking her calls.”