[There's an urge to argue (You're not fine) that he can't explain, Shiro's next words throw him off only because - the fight with Zarkon? That's-- right, isn't it? His armor is black, and the Black Paladin at that time was... The one he fought, of course, was him, even if Keith can't entirely fill in those gaps with the words alone. He stares at Shiro, the reaction indeed more neutral than it could have ever possibly been in his right mind, but a faint frown on his face still. His chest feels tighter than he can admit or grasp.]
You died. [..............]
I remember searching after that battle. [It's something he never talked about - because it hurt? For fear that it would cause hurt in turn? Now it's just a explanation.] For something in the debris, for months every night, and now I couldn't start to explain the reason.
So then - we fought. You were trying to kill me. [That's what he'd even said, earlier, Keith can only barely recall his own words now, repeating it absently rather than accusingly. It's with that same rush of trying to put things into context that his eyes land again on Shiro's hand where it clenches down, frowning deeper as it hits him.] ... It's all because it was you, wasn't it.
I didn't want to fight back. Didn't let go even when it'd kill me.