Leighton Meester and Sebastian Stan Split!

Gossip Girl star Leighton Meester and her boyfriend Sebastian Stan broken up! What’s with all these GG real life romances ending this week?

Leighton called it quits, because she “doesn’t know how to be in a relationship and doesn’t really like them,” explains the insider.

And since Leighton was the one doing the dumping, Sebastian isn’t taking it too well, with our source saying he’s “heartbroken” by Leighton’s decision to end the relationship.

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