Rachel Bilson and Hayden ChristensenRachel Bilson and Hayden Christensen have officially split, her rep confirms to PEOPLE. The couple had announced in June they were on a break, but they've called off their wedding and have no plans to get back together. "Yes, the engagement is off," Bilson's rep said.

One of the actress' friends believes distance was the biggest factor in their decision to break up. "It just wasn't working out," the pal said.