Ed Westwick‘s romance with his “Gossip Girl” co-star Jessica Szohr is definitely over. He was overheard telling a group of pretty girls he and Szohr were “no longer together” while catching the Kings of Leon concert at the Borgata in Atlantic City Saturday. A spy said, “Ed was dancing with a swarm of girls around him, and he was telling everyone he was single. He carried on the party later with Kings bassist Jared Followill.” Other stars at the concert included Tinsley Mortimer and Amanda Hearst.