This weekend, George Clooney cozied up to a woman who is not his girlfriend, Stacy Keibler. In Touch can exclusively reveal that the actor was spotted holding hands with his ex-fling — Croatian model Monika Jakisic — at Loulou’s members-only club on May 25 in Mayfair, London. “They seemed to be having a great old time together,” an eyewitness tells In Touch of the former flames. “He didn't seem to care who saw them. He was being openly affectionate.” The pair also danced to hip-hop most of the night. “Lots of people were going up and saying hi to George — he didn't leave Monika's side,” the eyewitness tells In Touch. “The place was packed but he didn’t seem to care who saw them inside the club. They were laughing and looked very comfortable together and were there ‘til very late.” Despite George’s affection with Monika inside the club, the Ocean’s Eleven star and the leggy brunette left the venue separately. “He left first and she left after him,” the eyewitness says. “He didn’t want to be photographed with her. Maybe she was a shoulder for him to cry on — not that he looked like he was crying. He looked very happy — they were smitten with each other.” George, who has been with Stacy since July 2011, was linked to the Croatian beauty in 2007. Stacy and George have been reportedly having problems for months, though they have yet to confirm a split. George is currently on location in London filming The Monuments Men.