Idk I think she was pretty supportive of them after she clearly got rejected. She didn't push beyond her rejection, and she only continue to "meddle" or pursue Eungi before he and Jeongwoo even get together. So, technically it's fair game. Her presence also helped them to realize their feelings quicker...maybe you may continue to dislike her for whatever reasons (and I won't dissuade you), but she's really not all that bad compared to other women you see in other BLs.
Omfg...no i meant she pissed me off when she just joined the club for eungi and kept bugging Jeongwoo to set them up when he clearly didnt want to....she doesnt piss me off now, you probably should have read my comment more clearer cause i said pissED meaning past tense, she doesnt piss me off anymore

Im glad i read the original cause i know for a fact that girl when wants to get close with Eungi was gonna piss me off....cause she pissed me off in the original