JenniferAniston081711.jpgHistory seems to be repeating itself - Justin Theroux was apparently still dating his now ex-girlfriend Heidi Bivens when he fell for Jennifer Aniston.

Jennifer, 42, and Justin, 40, met on the set of Wanderlust, and the movie's composer Craig Wedren - also a friend of the pair - has come forward to reveal the truth about Justin. He claims the actor was "very taken" when he "met and fell in love" with Jen. "He totally lied to Heidi and broke her heart," Wedren told InTouch magazine.

That's bad news for Heidi, but friends of Justin's are saying things could end up just as bad for Jen. "Justin will never marry her," another friend told the mag. "He's not the marrying type - as you can see from the 14-year relationship he was in that didn't end in marriage."

Ouch!