Osananajimi to wa LoveCome ni Naranai - Vol. 8 Ch. 71 - Romcoms don't happen if you don't wipe the tears away

[Mithgol]

The fact that he can't stand the Idea of losing or hurting any of them is already doing that for all of them.

Big if true.

I mean, if they are really hurting just by not being his chosen one, then we shound compare this story not to Nisekoi or to Bokuben, but to Haganai — the only difference is that Haganai's protagonist was so inclined not to hurt his harem that he even refused to admit their mutual friendship in addition to refusing their love.