Adam Brody and Rachel Bilson

Adam Brody and Rachel Bilson were lovers on and off the set of The O.C. Brody played Seth Cohen and Bilson portrayed Summer Roberts and together they endeavored on a romance for the ages. The couple met while filming The Oranges and were together off the set for three years from 2003 to 2006. Rachel Bilson went on to marry Hayden Christensen. Adam Brody married Leighton Meester from Gossip Girl.