Amanda Bynes and "Family Guy" creator Seth MacFarlane. According to Rush and Molloy, after dumping girlfriend Eliza Dushku this spring, MacFarlane has taken up with the 22-year-old former Nickelodeon star. Say witnesses at a party in L.A. this weekend, "They came separately but when she found Seth in the crowd, they huddled up and chatted. She giggled a lot." The comedians cruised the party together hand in hand, and "he walked out probably five steps in front of her but, clearly, they were leaving together." Gross.