Yeah. [He echoes him, swallows thickly, and nods -- even now he doesn't let go. He never will. Still, saying the words out loud for both himself and Shiro, definitely serves to cement it in a way he can't sell short.] Yeah, I do. I know.
[There's an assurance and certainty in his answer, in the way that Keith says it about as sure as the way his grip on Shiro's wrist held on. As certain as the way he holds him now, in that stubborn, relentless way of his. He has you and he'll do everything to make sure that's always true.]