Sam: Dean! Oh my God, Caroline, what the hell did you do!
Caroline: I didn’t… I don’t know.
Sam: If he dies, I swear, I’ll kill you myself.
Caroline: Sam, I didn’t do this! I swear, I didn’t do this!
Sam: There’s blood all over you! On your clothes, on your face.
Caroline: I tried to help him! The blood on my face is mine! I tried to feed him my blood to fix him.
Sam: Why don’t I believe you right now?
Caroline: Because you’re worried and you’re pissed.
Sam: Doesn’t matter. I don’t trust you.
Caroline: Fine, but I swear I didn’t hurt him. I would never hurt him! I love -
Sam: Don’t! Don’t you even say that!
Caroline: It had to be Klaus. Dean was getting closer to finding a way to kill him.
Sam: Where is he?
Caroline: You can’t go after him.
Sam: Like hell I can’t.
Caroline: He will kill you! Look at your brother! Look at what he did to Dean!
Sam: Exactly, Caroline! Look at him! He’s barely clinging to life, and I’m gonna waste the bastard that did this to him.
Caroline: You’re not going anywhere.
Sam: Get out of my way.
Caroline: No, Sam. I’m not gonna let you get yourself killed in your brother’s name. If he wakes up and you’re not here because you died avenging him, it’ll kill him. Don’t put that on him.
Sam: I can’t just let him get away with this.
Caroline: He won’t. I’m going after him, and I’m going to make sure he suffers.