[Biting back an apology he knows won't help any, that he knows knows is ultimately from the irrational gut feeling this gives him. Instead, he nods a little, listening. It's an odd sense of two emotions at the same time, one entirely grateful that he wasn't just gone completely, but also sadness that it had to happen at all in the first place. No wonder Shiro seems so shaken on top of everything else.]
And then... [It comes out almost disbelieving, not in the truth of it but just that he managed it in the end after all - again, grateful for that, at least, if that's how it happened.] Then I found you.