[ Well, that was rude. Castiel frowns, wondering if he'd introduced himself sooner, whether Dean might have cared then. It's unlikely, he decides, which... Fair. He doesn't matter in the grand scheme of things. Why in the world would his name have any significance to Dean? It shouldn't, and it doesn't, and Castiel shouldn't be bothered by the idea. The creeping sensation of disappointment is inappropriate. He pushes it aside.

Dean backs towards his own vehicle, and and Castiel doesn't move. His hands remain at his sides, at once as tense and calm as when they began. ]

I'd like to leave this place, but I need you to come with me.

[ It's what Castiel had said before, but if Dean is still trying to leave, obviously he doesn't understand the gravity of Castiel's mission. ]

There is an army of my brothers and sisters all seeking one man: you, Dean Winchester. None of us is permitted to return home until one of us has found you and brought you there.