He was smiling, thinking about her, thinking about this woman that was here that she would never be, ever again. Did he wish she was still that.
"I'm not like her." she said quickly "Maybe once a long time ago, but hell...Alastair? It tore everything she was away. Sure I remember it all but I'm not human. That fire she has, they took that away"
It took more than that to put the fire back, Lilith, and Azazel and their plans, and yes Castiel, in his own way had done more than either of them to fuel that fire.
"You weren't ever originally human. Seeing her...she's....not me anymmore. But you want me to, want me to hold her hand and tell her everythings gonna be okay. I'll do it."