[He blinks, surprised and caught off-guard by the question.]

Well, I...I admit, it wasn't easy. It, ah...it took a lot of time. Time I spent with you. Realizing that you'd changed -- become someone who didn't intend to harm me again, if you could help it. Someone who'd take more care with that than I ever thought possible!

[Bill's been good to him, lately. Better than some. Better than most, actually.]