Esposito: Deep cover? I can't believe he didn't tell me.
Beckett: Espo, he didn't even tell Jenny.
Esposito: Yeah, but I'm his best friend. She's just the wife.
Beckett: Thus proving why there is no Mrs. Esposito.
Esposito: Hey, it's hard to find a woman for this much man.
Beckett: (about a name from Castle's sleep talking) Come on, Castle. Who is Jordan?
Castle: I got nothing to hide. There's just nothing to tell.
Beckett: Then why are you being so defensive?
Castle: I'm not.
Beckett: Okay, fine. I'll just wait until you're asleep. And then I'll ask you.
Castle: You can't do that.
Beckett: Come on, Castle. You just said that you had nothing to hide.
Castle: Yeah, but interrogating me in my sleep? Would you stoop that low?
Beckett: Who says I haven't already?