Sam | Dean
It means I have control over myself. I told you my terms and honestly, I think they're more than reasonable. I don't kill anyone if I don't have to.
Don't know where you read that, but its not a matter of want. It's what I am now and as far as I know, there's no cure for it. There's no Mark, nothing to remove, Sam. That's what I'm telling you. My soul isn't human.