Sam and Dean in “Unfinished Business”

Sam

You were right. About Amy. If she was... just any monster, I'm not sure I could have let her walk away. I don't know. I mean, I'll never know.

Dean

So, what are you saying?

Sam

What I'm saying is... I get why you did it. You were just trying to make sure no one else got hurt. But here's the thing. You can't just look me in the face and tell me you're fine. I mean, you're not sleeping, you drink for the record --

Dean

Oh, here we go.

Sam

Look, whatever. Last one to preach, I know. But... Just be honest with me. How are those the actions of someone who knows they did the right thing?

Dean

You want me to be honest?

Sam

Yeah.

Dean

I went with my gut. And that felt right. I didn't trust her, Sam. Of course, ever since Cas, I'm having a hard time trusting anybody. And as far as how I been acting... I don't know. Maybe it's 'cause I don't like lying to you. You know, it doesn't feel right. So, yeah, you got me there. I been climbing the walls.

Sam

I know how that is.