A: You can't keep me from seeing my daughter.
B: When you and your drinking are hurting her, I can.
A: Yeah, 'cause you've never did anything to hurt her, right? You wanted the divorce. I think that's hurt her more than anything else.
My question is if the line "'cause you've never did anything to hurt her" is completely natural here? Or does it indicate that B divorced A to (deliberately) hurt their daughter?