photo of Bilson, courtesy of flickr.com It is a sad day in Hollywood relationship land. Rachel Bilson and longtime boyfriend, Hayden Christensen , have split after roughly a decade together. The couple was engaged in the past and have an almost three-year-old daughter, Briar Rose. Apparently, Bilson is living on the West Coast while Christensen is off in Canada. With their on/off track record, we are super hopeful that they can reconcile, if that is what they are both hoping for.