SPLIT: Ashley Olsen And "The Hangover's" Justin Bartha

And another one bites the dust! I'm convinced people in Hollywood can't cohabitate. They eventually just go there separate ways. Remind me never to move there....

Ashley Olsen is a single lady. The actress-fashion designer, 24, and her Hangover star beau, Justin Bartha, 32, have parted ways, a source confirms. The private couple, who dated for more than two years, shot down engagement rumors shortly after they got together in 2008. Reps had no comment.