Could Mischa Barton and Perez Hilton finally be working things out? In a sneak peek clip from an all-new episode of The Hills: New Beginnings, the actress and celebrity blogger attempt to repair their relationship following a years-long feud. "This bullying that you did was so wrong to so many girls," says Mischa. Watch below:Last month, ET spoke with Mischa about how it feels to start a "new chapter" on the show. RELATED CONTENT:'The Hills' Cast Reveals What Lauren Conrad Thinks of the RebootStephanie Pratt Explains Why She Has a British Accent on 'The Hills' Reboot (Exclusive)Mischa Barton Reveals Which 'O.C.'