Okay, first of all, don't worry about Dean. He's gonna blame both of us no matter what You have enough to worry about right now. I'm certainly not going to let him kill you. You're on our side here. I know you've done bad things, but... that's not really you anymore, is it? Even before this turning-human thing. Maybe all the guilt will be gone by tomorrow, but you'll still be you. Whatever motivated you to help me in the first place, that'll still be there. That's what matters.
I mean, I don't blame you for not wanting to turn back into a demon. If I could have Azazel's blood taken out of me, if I could just be a normal guy and not uncleana monster whatever the hell I am, I'd want that too, and I wouldn't want it to go away a day later. But this is who I am. And I'm doing the best I can with it. I have to believe that it's gonna work, that we're gonna save the world, and then everything we've gone through will have been worth it, for both of us. Even this.