When it comes to the single life, "I'm not enjoying it," the actor, 40, tells PEOPLE

By Jeffrey Slonim
April 18, 2010 01:30 PM
Dimitrios Kambouris/WireImage

Having separated from his wife of four years, Israeli actress-model Naama Nativ, in February – and coping with his situation with the help of his also recently separated costar Kelly Rutherford – Gossip Girl‘s Matthew Settle tells PEOPLE, “I’m not enjoying it it’s tough.”

Speaking at Thursday’s Lilly Pulitzer-sponsored dance at New York’s American Museum of Natural History, Settle, 40, said, “Until the divorce is over, it’s tough to know how much time I m going to spend with [1-year-old daughter] Aven and how the chips are going to fall. So I hope for the best.”

Moving forward, “I think that we’ll be good co-parents,” he says. “And we’ll do the best we can.”

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In the meantime, Settle says, there have already been positive developments in his life: “You know, it’s funny. I’ve lost a lot of weight. I’ve been running. And I’m getting ready for Chicago on Broadway. I’m playing Billy Flynn. I open Monday night.”