I'd actually fucking vomit if I saw him in reality. And seriously? NTR bait at this point? Manga authors' inability to actually make the MC gain confidence without the classic NTR plot is actually hilarious. Pretty much every manga with meek/shy MC must have this plot for some reason. I can already see the mountain of moronic misunderstandings piling on top of each other so that MC actually thinks they're already broken up.
Btw, he 100% knows.