The Hills New Audrina Patridge boyfriend Ryan Cabrera joining 'The Hills' 02/25/2010 Ryan Cabrera will once again appear on an MTV reality series as the love interest of one of its stars. Read More RELATED NEWS Kristin Cavallari debuts new 24-year-old boyfriend Mark EstesBrody Jenner and Tia Blanco welcome their first child'The Hills' alum Brody Jenner engaged to pregnant girlfriend Tiarah "Tia" Blanco TAGS: The Ashlee Simpson Show Audrina Patridge Ashlee Simpson Ryan Cabrera Mark Burnett
