[A part of him feels relieved and good that he didn't try covering it up, but the other part of him is overwhelming, almost sick with that feeling of wanting to soothe things over, make things better, try something...

But there isn't much else to do, is there?]

Hey... [So he traces his fingers back instead, until he can touch a certain spot on Billy's head lightly, a knot that's still there.] I'm the one who gave you this and knocked you out before you could do anything else. We both kind of beat each other up here. [Which, incidentally, he still feels guilty about.]