Credit: Taylor Hill/FilmMagic

Gossip Girl star Kaylee DeFer is no longer engaged to jewelry designer Mike Pereira, she tells Us Weekly exclusively.

"We just separated," DeFer told Us while celebrating Gossip Girl's 100th episode at Skylight Studios in NYC Thursday.

DeFer, who plays con artist Ivy Dickens on the CW soap, added: "I was engaged for a long time and this is me being single."

Despite their recent breakup, there are no hard feelings between DeFer and Pereira.

"I think sometimes you just realize it's time to move on," the 25-year-old actress explained.

The Arizona native added that she won't be spending Valentine's Day solo, either.

"I'm going to sit down with a group of friends and make a bunch of old school Valentines like you did back in the day. We'll send them out to all of these people from your past, present and people you want to get to know," DeFer told Us. "Because who doesn't want to have a Valentine on Valentine's Day?"

The 100th episode of Gossip Girl airs Monday, January 30 at 8 p.m. EST on The CW.