lol, well, Jen already said the first part of what I was gonna say, so...

I figure that he does have some amount of guilt over the whole thing, and it shows especially in Chapter 8. I mean, he does say "I will leave it to the one who loves him most." Even if he doesn't know about the abuse, it kind of implies that he knows there was something wrong there.

And, once again, he seems to not be dealing with anything there himself.