[Another moment of silence and sluggish thinking. Yamaguchi eventually pulls back a bit so he can look at Oikawa's face, while very slowly the gears turn in his head. Another dull-eyed blink, a confused look; then realization sets in and Yamaguchi sits up straight again, looking devastated.]

N-No! No, Oikawa-san, I'm not trying to say something like that!

I like you, and Tsukki's my best friend, and I'm really, really happy you're here...! [The words are jumbled together and barely coherent, and Yamaguchi reaches clumsily for Oikawa's hands with his own so he can grip them tightly in reassurance.]