[ He breathes out a small sigh of relief. Ai would understand why that would be frightening. Their feelings are filled with apathy but if they turned that apathy into a knife -- it is as he said to her; neither one of them is an enemy of society and so society cannot do anything to them. But if they decided to become enemies of humanity --

His hands tighten on the cart, but he feels saved by her words. Kei did not realize that he started to break out in a cold sweat. He only notices it when his collar feels slightly damp. It seems his attempt to not worry Ai only did the opposite. ]

You don't think that, huh? ... thank you. [ A beat. ] And you wish for me to be happy? That's-- that's very kind of you. I'm sorry for saying such troubling things in the middle of a grocery store. No, that's not right. The place where I said it was wrong, but I'm relieved that I said it to you. [ Because his actions were becoming clouded to him. He couldn't tell if he was doing anything "good" or if it was actually harmful. ]

I should have just spoken honestly in the beginning. It isn't like me to hide anything. [ Something that is as much of a pro as it is a con. ] Sorry. I'd say it was to protect your feelings, and I'm certainly I said that much to myself. [ He takes in a deep breath. ] You're going to make a good foster mother, Ai. A sudden statement, but I believe it.