Best of 2011: Cheating Scandals of the Year
Kelly Osbourne, Luke Worrall, Elle Schneider
When the E! star and model ended their engagement in July 2010, rumors swirled that Worrall's affair sparked the split. Finally, in January 2011, model Schneider -- born a man and awaiting gender reassignment surgery --was revealed as the other woman. "I didn't know he was engaged," Schneider said.