“ENTOURAGE” star Kevin Dillon did a lot of flirting in Vegas the other night, adding fuel to published rumors he’s split with wife Jane Stuart. Dillon was seen talking to a series of pretty women at the club Lagasse’s Stadium at the Palazzo Resort. A spy said, “He was chatting to a lot of girls who approached his table. He was being very flirtatious and looked like he was enjoying the attention.” A rep for Dillon, who wed Stuart in 2006 before she gave birth to their daughter, Ava, refused to comment on the alleged split.