Castle: You want to talk about it?
Beckett: ‘bout what?
Castle: Kate, I saw you. When you saw that gun, you froze
Beckett: It’s nothing
Castle: Your hand was shaking, that’s not nothing
Beckett: Castle, it’s my second day back, that’s all. It’s no big deal.
Castle: And if it happens again?
Beckett: It won’t
“It won’t if you’re by my side.”