Jon Gosselin's Friday Night in Las Vegas

Jon Gosselin, star of the popular "Jon & Kate Plus 8," didn't seem like he was having much fun in Las Vegas on Friday night after arriving there to host an event at the MGM Grand, RadarOnline.com reports.

Gosselin, 32, ate dinner at Wolfgang Puck's restaurant with four other men and seemed concerned about buying cigarettes. He later looked at the blackjack tables but did not do much more by the time he left at 2:45 a.m.

His girlfriend, Hailey Glassman, 22, was not present.

Gosselin recently told People.com that he will always love his soon-to-be ex-wife, Kate Gosselin. He tried to save their marriage through counseling but could not make it work, and the relationship was over in October, he said. He is now in love with Glassman, who he said he began dating after Kate Gosselin filed for divorce in June.

"I have no ill will toward Kate," he said. "She's the mother of my kids."