Peter
Look, I appreciate what you're doing. I even appreciate that he's trying. And that he cares. But you're not seeing what he's saying to me. He has never respected me since he's been here and that's fine. But he's outright threatened me to Crowley, more importantly my daughter.
And we have tried, both of us, separately to explain to him that I'm not about to shove the soul back into Sam without figuring out how to protect him. I'm not going to do this rashly or quickly. But what I need Castiel to realize, and what he's not grasping is that he doesn't get the final say here. I do. Dean does. That's it.
And he needs to realize that without a soul Sam's dangerous, he's a true and complete sociopath. And right now, sure, he's saying he wants the soul back, and maybe he does but he's not capable of making those decisions. I don't trust that Castiel won't help him run. I don't trust that he understands how deep this goes in Sam.
He's insulted me, he leapt to insult a guy he's spoken to all of twice. He can try all he wants. But I don't trust him. This him.