What is it about this twink Sunhwa that has nanjo in a chokehold??? I really don't get it....

What is it about this twink Sunhwa that has nanjo in a chokehold??? I really don't get it. Is it because he looks like a teenage boy or something??? I'm a woman and I can't for the life of me find what his appeal is to make nanjo okay with being disrespected like this. I understand mokyoens crash out cz it is a different level of heartbreak seeing your crush boo'd up with a shitty person that doesn't respect them at all. He can't even give up cz he knows how trash his friend is and just backing away without saying anything is wrong even from a moral standpoint