Oh, thank fuck for that. The moment the gun was lowered away from him, Spike started to relax properly. Well, as much as he could without knowing what the hell was going on or where he was or what had caused the pain in his head or... anything.
"And you're human?" he asked, just to check Dean wasn't some kind of pain-inducing demon.
Whatever he was, he was good. And young. And that little lift of his chin was kind of cute. Spike grinned. "Relax, mate. I'm not going for you again. Third time might kill me."