Hannah and Castiel in “Unfinished Business”

Hannah

I'm sorry Castiel, I'm not going with you. I'm done. It's hard letting go -- the story, the mission. What of the humans, whose lives we sacrifice in the name of that mission, what of them? We always said the humans were our original mission; maybe it's time Castiel, time to put them first.

Castiel

Where is all this coming from?

Hannah

Being on Earth, working with you. I felt things, human things -- passions, hungers. To shower, feel water on my skin, to get closer to you. But all of that was nothing compared to what I felt when I saw him. Her husband, his anger and his grief. Caroline was inside me screaming out for him, for her life back. These feelings they aren't for me, for us. They belong to her. I know it's time to step aside... Goodbye Castiel.