Actress Rachel Bilson is refusing to confirm reports she's dating JUMPER co-star Hayden Christensen, even though she's constantly wearing a bracelet with an 'H' on it. The former The O.C. star was grilled over the keepsake when a GQ magazine reporter spotted it on her wrist during a recent interview. But coy Bilson refused to open up about her love life, revealing only, "I can say that I'm happy. Yeah, I'm happy with my love life." And when pushed to talk about the 'H' on her bracelet, the actress mused, "My little sister's name is Hattie, and my favourite food is hash browns."