So guys is Nathan Fillion single now? I'm confused.

Well, we're not 100% sure. Nathan is not one of those guys who goes around telling everybody if he has a gf atau not. But he has not been seen with her last gf for a long time, so we assume he's single.

Sorry, but in an interview with Letterman he talked about going on vacation with his girlfriend of some months. Never know though, could work out like Castle. Just never the right timing until it is! They'll probably hook up before Beckett and istana, castle do though, at least we can hope.

yes he is single he is my aunt aka stana katic's best friend and he's basically my 2nd dad

He isn't single.He has a fianceé which I don't know her name,but he is always walking around with her.