[Billy isn't moving to join her, per se; it's more that he's hovering in the general vicinity of the nearby shelves, and he doesn't say anything to her until the silence has gone on long enough that it seems he's going to be the one to break it, either by way of approaching or saying something himself.

He'll do the former eventually; when he speaks it's entirely straightforward in tone. Just business, nothing sentimental attached.]

I spoke to the Balladeer about your brother. He called that entire display on stage "dramatic license" - he wasn't anywhere near that over-the-top evil when he was carrying that whole thing out.

[...]

You've still got my condolences. I just wanted to let you know that at least one of us let him know that wasn't appreciated, any of that.