Dean/Castiel
Look Cas. I'm not going to pretend I know what's going on here. And I'm not going to say that I'm not happy to see some of these familiar faces again. You They didn't deserve to bow out so early in the game. So I guess no matter how crazy space head is, this is their shot at a second chance.
I think best course of action here is to let them have it and that means keeping quiet on what's gone down back there in our reality. You got that?