She sure has a thing for the closet-cases pretty boys!

Rachel Bilson was spotted out to dinner in NYC with Gossip Girl’s Chace Crawford!

A source reveals:

“The two arrived together. There was lots of flirting going on between the two of them; the attraction was obvious. They kept giggling. It was very sweet.”

The two even left together, and were seen out partying later that night!

Interesting!

We won't hold our breath, though. Rachel is just probably trying to finagle her way onto his show!

Girl needs a serious comeback!