[ He'll never begrudge her the heart she wears or her honesty in moments that she decides are prudent, and he doesn't look as concerned about her lack of a command as he would have at the beginning; that's just the kind of person Ai is, he realizes. ]

I see. You have reason to be cautious, which is understandable.

But the Grail isn't without its merits. It's given me you as a Master.