[Ahh fuck, he didn't realize and hates incitng that reaction, closing his eyes and breathing out, gathering himself before he looks up again.]
Shiro... [He lets a brief moment of that silence pass between them, maybe feeling that any lecture to tell him he doesn't have to be sorry for any of this... won't really help. Keith certainly would blame literally anything else first. Still, his eventual words are quiet but honest as hell:] I'm not. I'm here for what's important to me - that means facing everything right here along with you. Don't try to regret that for me.