[Oh, he's aware of that. That's the whole problem with this thing... if Kitty was just your average 19-year old genius, it might be weird for a while but nothing more. The fact that she's also a mutant ex-assassin tips the scales from weird to frightening, and he's not entirely sure how to handle that.
Maybe it's not even a thing he needs to handle. He knows what he's getting himself into quite well by now. ]
She'll come around. She doesn't really have much of a choice, does she? [He's certainly not going anywhere.]