Though he doesn't directly name his Gossip Girl costar and ex-girlfriend Leighton Meester, the two dated from 2008 to 2010. Stan — who played Carter Baizen on Gossip Girl — appeared in 11 episodes from 2007-2010. He's avoided publicly discussing his relationships over the years, but he spoke highly about Meester during their time together.

Sebastian Stan fondly looked back at a romance during his Gossip Girl era, presumably with ex-girlfriend Leighton Meester. “It was the first time I was in serious love with somebody,” Stan, 42, told Variety in an interview published on Thursday,

It looks like Sebastian Stan meant every one of his xoxos to Leighton Meester. The Gossip Girl alum revealed that he feels particularly nostalgic about his role as Carter Braizen on the CW series from 2007 to 2011 due to the significance of his relationship at the time.

Sebastian Stan unpacks his transformation into Donald Trump, from gaining weight to watching 500-plus videos of the former president.

Sebastian Stan schooled himself in Donald Trump lore in order to perfectly portray the businessman in his upcoming movie The Apprentice. In a new interview, the actor, 42, revealed everything he did to get into character for the film,

Sebastian Stan saved around 700 videos of Donald Trump on his phone so he could study the former US President's speech and body language to play him in new movie 'The Apprentice'.