[Nothing could compare. It wasn't the physical pain that tortured Castiel, it was the morning after. And the next day. The solid two days it took him to recover enough to even speak to her, and then the days following of him trying to cope with the fact that he wasn't an angel anymore. That was the real pain he had to endure. And it was anguish. And no one could ever understand that except Castiel himself -- though Rei, in watching him, and listening to him, and figuring him out, and helping him recover, had come close.]

Well, I'm happy for you.

[Somewhat bitterly.]

You changed your mind about how you felt -- that's great. That makes up for everything you've done to him, and the pain he had to go through, and the suffering he endured -- so long as you feel bad about it.

I'll send my congratulations to you when I find it in my heart to care.