Robert Pattinson hangs out with Mischa Barton

Now that he and Kristen Stewart are no longer together, Robert Pattinson's living on his own, in a Beverly Hills mansion, and enjoying a single summer. With Carey Mulligan? Or Zoe Saldana? Or Keira Knightley? Or Emily Blunt and John Krasinski? The A List? Not exactly. According to E! ...