Just after Lucifer realizes he was his own torturer, he has no other choice than to talk Cain into hell, turning himself back into the monster he believed himself to be.
Amenadiel: Why did you do that? Why did you jump in front of me like that? Charlotte: Wasn't for myself. Was redemption. Will you, will you stay with me? Amenadiel: Yes, yes. I promise. [Amenadiel has his wings back] Let's go home.
