Gossip Girl's Matthew Settle Finds Marital Split Tough

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.”

Gossip Girl's Kelly Rutherford & Matthew Settle Bond Off Screen

When Matthew Settle confirmed his separation from his wife, his Gossip Girl costar Kelly Rutherford could empathize, thanks to being in the middle of a divorce herself.

“He’s going through his own thing, I’m going through my own thing – we kind of just support each other,” she told reporters at this week’s Manhattan premiere of the Discovery Channel’s new nature film, Life.

Gossip Girl's Matthew Settle and Wife Split

Gossip Girl star Matthew Settle and his wife, Naama Nativ have split.

“It’s true and we are working on that,” Settle told PEOPLE at Tuesday’s G-Star Raw runway fashion show in New York. “Things happen in life and you just have to roll with it. I wish things could have been better but our focus is on our daughter.”

Meanwhile, a source confirmed to PEOPLE, “They have been separated for a while now,” and legal proceedings are still underway and no divorce papers between Settle, 40, and Nativ, 26, have been filed yet.

Gossip Girl's Matthew Settle 'Excited,' But 'Not Ready' for Baby

Matthew Settle, the gallery owning father of Penn Badgley and Taylor Momsen’s Gossip Girl characters, is “thrilled” to be an expectant father in real life.

“I’m not ready. I don’t think I’ll ever be ready,” he told PEOPLE at Tavern on the Green Tuesday night. “But I’m thrilled.”

Settle and his wife, Naama Nativ, enjoyed a dinner to benefit the Tribeca Film Institute after attending a screening of the new James Bond flick, Quantum of Solace.