Sam and Dean in “Unfinished Business”

Sam

What's going on? What are you doing?

Dean

I got to tell you some stuff fast. It's gonna piss you off.

Sam

Okay.

Dean

Those trials really messed you up.

Sam

Yes, I know that, Dea—

Dean

(hurriedly) No, you don't. I mean messed you up like almost dead. No more birthdays, dust to dust. Well, that messed me up, so I made a move, okay, a tough move about you without talking it over because you were in a coma.

Sam

Wait, what? When?

Dean

You were in the hospital, okay, and they said you were gonna die.

Sam

What did you do?

Dean

... I let an angel in.

Sam

In what?

Dean

In you. He said he could heal you and he is.

Sam

He's still in me? Wait. (laughs) That's impossible, Dean. That couldn't happen. I never invited him in.

Dean

I tricked you into saying yes. It seemed like the only way.

Sam

(sighs) So... Again. You thought I couldn't handle something, so you took over!