The guy has been divorced twice and is still chasing bimbos. Maybe it is who he is.

Beckett

Sometimes it's the people we think we know best that we don't really know at all.

Weird. We're usually more in synch than that.

Beckett: I feel like I just walked into a bad episode of Miami Vice.
Castle: First of all, there are no bad episodes of Miami Vice.

I don't want to lose what we have.

Beckett

The guy is crazy about you. And despite your little act, you're crazy about him.

Lanie

Kate, it's been weird for four years.

Lanie

Love is no switch. You can't just turn it off.

Martha

I was shot in the chest and I remember every second of it!

Beckett

Alexis: They say genius skips a generation.
Castle: Apparently, so does funny.

These pancakes are usually reserved for breakups and Dancing With The Stars eliminations.

Castle: I think she's starting to like me.
Gates: No, I'm not

Castle Season 4 Quotes

I'm not going to lose her again.

Castle

I know I'm not going to be able to have the kind of relationship I want until the wall comes down. I cant do that until this is put to rest.

Beckett