"I know you're not her," Castiel replied quietly. "Don't get me wrong, as much as I like her, as much as I can see traces of you in her, you're the one I love. I just want to help her."
He still wanted to change her mind on the healing thing, and part of him hoped that seeing Ruby would help with that.
"Yes, I want you to. Because I think if you don't, one day you'll regret it."