Castle, Season 3

Beckett:
Castle, if you've got something to say, just please say it.

Castle:
Beckett, everyone associated with this case is dead. Everyone. First your mom and her colleagues, then Raglan, then McCallister. You know they're coming for you next.

Beckett:
Captain Montgomery's got a protective detail on me. [Walks toward the window] Wasn't that hard to spot.

Castle:
That's not going to be enough to stop Lockwood, you know that. Think about what they're up against. Professional killers? I've been working with you for three years, you know me. I'm the guy who says we can move that rubber tree plant, but you know what, Beckett? I don't think we're gonna win this.

Beckett:
[Voice rising] Castle, they killed my mother. What do you want me to do here?

Castle:
Walk away.

[Beckett in disbelief at his words]

Castle:
They're going to kill you, Kate. If you don't care about that, at least think about how that's going to affect the people that love you. You really want to put your dad through that? And what about Josh?

Beckett:
And what about you, Rick?

Castle:
Well, of course I don't want anything to happen to you. I'm your partner. I'm your friend.

Beckett:
Is that what we are?

Castle:
[Anger rising in his voice] All right, you know what? I don't know what we are. We kiss, and then we never talk about it. We nearly die frozen in each other's arms, but we never talk about it. So, no, I got no clue what we are. I know I don't want to see you throw your life away.

Beckett:
Yeah, well, last time I checked, it was my life, not your personal jungle gym. And for the past three years, I have been running around with the school's funniest kid. [walks past him] And it's not enough.

Castle:
You know what? This isn't about your mother's case anymore. This is about you needing a place to hide

[Beckett stops and turns to him]

Castle:
Because you've been chasing this thing so long, you're afraid to find out who you are without it.

Beckett:
[Yelling] You don't know me, Castle. You think you do, but you don't.

Castle:
[Moving toward her] I know you crawled inside your mother's murder and didn't come out. I know you hide there. The same way you hide in these nowhere relationships with men you don't love. You could be happy, Kate. You deserve to be happy. But you're afraid.

Beckett:
You know what we are, Castle? We are over. Now get out.