Sam
Have you talked to Castiel? I mean, I figure being possessed by an archangel would be like being possessed by him on steroids. Maybe there's some way to take back control of the situation? He wants to take over your body. Is there any way we can actually turn that to our advantage without you losing your mind in the process?
And you've been exceptionally stubborn in your opinion of me. It counts.
He's my brother. And as much as I've hated him at times, I also love him. I mean, yes, he can be a sadistic little shit who has killed multiple boyfriends of mine over the centuries. But he can also be a good man. He will defend me with everything he is. In his twisted way, even when he hurts me, he thinks he's protecting me.