[Yamaguchi startles just a bit at being snapped at, but this time he doesn't seem upset so much at Oikawa's tone than the words themselves.]

That's...totally strange to me, Oikawa-san. [He can't imagine anyone simply tiring of a person like Oikawa.] I mean, you're really cool.

[Not as cool as Tsukishima, but still very, undeniably cool.]

But...if they do, they're probably not that nice to begin with.