[ Reid gives her a glance as she sits down, but doesn't speak up. Doesn't really mind that she's there, especially since she's not trying to strike up conversation where there is none to have. Instead he resumes playing, striking up the one song that he can think to play right now. He's taught himself others over the last few years, mostly classical music, mostly Beethoven, but right now this is what he's playing.
Some days you really need to remember the kids you did manage to save.
He lets it roll on, repeating, eyes half-closed as he ignores her in favour of the music and maybe that's speaking more than words could. There's determination, unwavering, relentless and if he hurts then he doesn't show it. He's lost too much to hurt and come out on the other side and in a way he gets it now, understands the steely sort of disposition that Hotch always carried after Haley.
Silently, he continues to play, migth move on to something else if she still doesn't speak up. ]