well that attitude we call tsundere. Doesn't know how to express emotion, maybe for him to say sorry is just to embarrassing for him. And wonwoo is wrong too. He didn't want to hear wha seme want to say in the first place
A tsundere isn't abusive in any way. This is borderline yandere.
Wonwoo saw what he needed, however, Geonyeong should've cleared this whole misunderstanding firsthand instead of waiting for Wonwoo to come running to him and apologize for what? For not being cleared up that his sex partner was, indeed, having a business talk with his former lover? No one wants to hear excuses, excpecially if left hanging for a long time.
NO. JUST, NO. This is NOT how you apologize or anything of that sort. Get yourself together. Just because you're a pro who jinxes himself for good luck doesn't mean you can assault someone you use as a sex toy. Leave Wonwoo alone, asshole.