Regen must mean regeneration. If this human can heal... It's good to know. He'll just have to aim for the face if he ever wants him dead.

But staying on track,

"I wonder if things like those exist." If they do, they must be some kind of imaginary spirits. Maybe that does mean this guy's 'warm' despite the curse's musing. No sense in taking it back, now. "Here I thought aliens were kinda cute. They do seem a little too eager to get along, though, so I guess you're right! Let's go with demon."

He's just.. picking one, like it's some sort of game.