[It's like feeling a wave crashing down only for it to come back again stronger the second time it hits. We're dating. Then - I love you.]
... Oh. [Is the first, utterly incredulous, disbelieving sound he can manage to push out. He can vaguely see Shiro's hand fussing with the blanket at the edge of his vision, an absurd detail to pick up on while the rest of his brain struggles to lurch back into motion from the current state of static that it has turned into. Is he still asleep? Was all of this some weird and all too realistic, elaborate dream he's having? Oh, part of him can't help but think. This isn't actually real, is it?]
[At the same time, it puts Shiro's actions this whole time into focus so much more, his words, the things he's been saying so directly - undeniably. There's not a part of Keith that wants to truly doubt Shiro, and especially not the way he's saying he loves him so much more felt, for a second time. It floors him. It turns into a conflict inside him between the part of him that hasn't yet learned better, and the part that trusts Shiro.]
We're - [......... How?? ?] Wh-- [His voice turns small, shaky, and in the end it's himself that he can't trust, something wavering in his wide eyes.] How's that even possible?