LONDON: Robert Pattinson can’t let go of Kristen Stewart. The actor who split from the actress in May, less than a year after Kristen’s cheating scandal with Rupert Sanders feels like an “idiot” for hanging out with his former flame, but just can’t help himself. Rob and Kristen recently met up at his new Beverly Hills mansion, and they were spotted driving their cars out of his home after a four-hour rendezvous. When Rob realized he was being photographed, he went back to his house while Kristen flipped photographers the finger and sped off.–SZ