[Don't look like that, don't -- He frowns, stopping just short of really getting into his space, looking at him a moment. Then he turns his gaze, almost forcefully so, anywhere else but Shiro's face and instead eyes the metal that was left over from his arm.]
This stopped it, didn't it? [Losing the arm. The question is quieter than he intends, not so final, but still departed from the usual worrying way Keith would do in - well, all of this.]