What Rei really wanted was the fact that he is not treated like how Omegas are treated ( protected by Alphas , cannot stand on their own , alpha treating them as their properties) and wanted to stand on the same level as Alphas. So if Yuujin were to apologise for his behaviour, it would mean that Rei would have to accept the fact that infact he was weak and was raped by an alpha and was not having sex on his own wishes with Yuujin which would further made him believed that Yuujin did not looked at him as his equal partner but that as an omega . Yuujin understand his partner 's mentality that's why he always said that he never treated him like an omega to made him feel assured that he in fact loves him for who he is and not bcoz he is an omega
what is it with these alphas never having to face any consequences for their actions. both of the MLs are rapist assholes. the way that rei is treated as soon as he’s revealed as an omega is abhorrent and yuujin never apologizes for his behavior or seems to realize or care about rei’s struggles. the only decent thing was yuujin wanting rei to bite him and mark him too. & the uncle deserved to be used as a human fleshlight and castrated for the way he treats omegas.