Taehwan doesn't want to accept the fact that he likes to do it with yoonwoo and he might be gay and it frustrates him that he can't deny it himself, he can't resist the urge so he just take out all the anger on yeonwoo, humiliate him so that he'll back off and refuse taehwan but ofc the mc is crazy too so these both are just being fucking toxic
Taehwan only wants to fk and that’s it. He sees it as a type of entertainment seeing someone follow his orders and obey him, begging or pleading. He’s in complete denial of actually being gay though. He plays around and fools around with yeonwu just for some amusement.