spoilers

brown hair was rejected, and black hair will be endgame. I mean, that's not really a surprise, but he took it well, or as well as he could.
shame, cause out of all the love triangles I've read this had some of the best potential to be poly, with the tops being friends and all.
the raws were up to chapter 81, he was rejected in chapter 69.
then mc's mother has to go to the hospital cause she wasn't feeling well, mc overheard something (didn't translate), and as a result he decided to reject black hair too as to "not be a burden to his mother" but I mean in chapter 80/81 they're fucking again already so I'm sure they'll end up together.
the misunderstanding of the past was also cleared, we get a flashback from black hair's perspective and he was really just not doing well, and was nauseous because of that, he didn't even hear mc confess to him, which is kind of ridiculous but anyway, they very much know the feelings are mutual now.