US mag is reporting an official split between Jennifer Aniston and Vince Vaughn, claiming that the relationship ended the week of September 9, just before Vaughn left to shoot Joe Clause in London. "It's not common knowledge, but we're not together anymore," Vaughn reportedly told a friend. "We've split up." The breakup was also confirmed by a friend of Aniston. "They're 100 percent done," said the friend. The relationship reportedly began to crumble shortly after Vaughn's June proposal to the Friends alum.source