Dean and Sam in “Unfinished Business”

Dean

You know, Sam, I saved your hide back there. And I saved your hide at that church... And the hospital. I may not think things all the way through. Okay? But what I do, I do because it's the right thing. I'd do it again.

Sam

And that... is the problem. You think you're my savior, my brother, the hero. You swoop in, and even when you mess up, you think what you're doing is worth it because you've convinced yourself you're doing more good than bad... But you're not... I mean, Kevin's dead, Crowley's in the wind. We're no closer to beating this angel thing. Please tell me, what is the upside of me being alive?

Dean

[shocked] You kidding me? You and me... fighting the good fight together.

Sam

Okay. Just once, be honest with me. You didn't save me for me. You did it for you.

Dean

[totally confused] What are you talkin' about?

Sam

I was ready to die. I was ready. I should have died, but you... You didn't want to be alone, and that's what all this boils down to. You can't stand the thought of being alone.

Dean

All right.

Sam

I'll give you this much. You are certainly willing to do the sacrificing as long as you're not the one being hurt.

Dean

All right, you want to be honest? If the situation were reversed and I was dying, you'd do the same thing.

Sam

No Dean, I wouldn’t. Same circumstances, I wouldn’t.