That gets a long, uncomfortable pause, at the end of which, all he can really say is, "I don't... know?"

It's complicated. Made even more so by the fact that he isn't sure about the answer. He's been maybe a little less itchy to tear things up, sure, but even so, "I'm not exactly doing much with it." At the moment, anymore, take your pick.

He does clearly feel guilty about that, if nothing else.