I'm only through chapter 4 so far, but I'm having the same issue. He even talks about how he doesn't like I-won's pheramones, but we're told he's in love with him multiple times. Honestly, by the end of chapter 4, it feels more like I-won is obsessed with our MC and wants some kind of threeway with the new Omega as an excuse to get with the MC. But that could just be the translation talking.

This mc is an asshole,seme deserves way better and i don't wanna hear no excuses for his ass,argue w the wall bc i know if this was the other way around and he were the seme and ml was the uke people would be on his neck calling him out for his behaviour and w the spoilers he gets even worse ugh