Rachel Billson and Adam Brody met on the set of “The O.C.” in 2003 and fell for each other. They were together for three years until 2006. As it turns out, they weren’t right for each other, but have both found their match by now. Rachel has been in a relationship with Hayden Christensen since 2008 and they have a daughter together. Adam Brody has been married to Leighton Meester since 2014.