OK I'M SORRY

Having raised poorly is a reason but not an excuse to be a bad person. Jiwon is capable of thinking what is right or wrong, or feel empathy despite being raised such way. I also feel bad for Jiwon, back then and even more so now due to this chapter but he was still a jerk to DG. He'll eventually get out of being one for DG but most importantly for himself.

It's not fair to hate on a person or consider him bad just becausse he did a couple of mistakes during a sexual relationship with another person.
Most importantly DG had multiple choices while Jiwon had none.
He was abused by his family and had no other choice but to take it and change himself and now people want him to change again.
DG is the only one responsible for getting hurt here.

True...

Bad behavior is bad behavior, but not saying he's a bad person entirely. He had reasons why he was behaving that way but it doesn't mean that what he did before now becomes okay. He did bad stuff to other people no matter how bad his upbringing was. Making it all okay is what is unfair. He deserved getting hurt because he hurt others, too. And DG didn't know about his past, he wasn't opening up. Jiwon getting hurt for being rejected is not DG's fault.

And I did not say DG has no part in their fall out. He was told off to end it with Jiwon but still did what he wanted. Jiwon has reminded him a couple of times, too but ignored them. DG ruining a broadcast, his misery for getting hated (at first), his guilt and regret are both his fault. Feeling down and being miserable is his fault.

Well, I don't agree when you say "He deserved getting hurt because he hurt others, too". That's cruel. People make mistakes, they get wrong all the time, and yes, I think Jiwon was really bad almost entire story, but now we KNOW his past. Feeding this circle of hate and pain is not right. He must apologize on the right way, and regret for what he does. I won't wish he suffer like I wished some chapters before, I feel bad for him, and for DG too. Hope everything ends alright.

He wouldn't have realized how much painful it was for DG if he wasn't hurt too, so I think he deserved the pain he is feeling now. Before, his pain was selfish, he's the only one hurt/hurting and did not care if others are; but through DG, Jiwon's realizing that he can hurt others, too. And it hurts hurting others. (I just said "hurt" too many times) But he should process all of this properly and apologize to DG, as DG did to him. That's just fair. And I think it's okay to hate the act/behavior, not the whole person. I personally hated whatever he was doing but I kind of guessed that he had issues to begin with. I mean the whole body conscious thing was big hint, at least for me. So I never really hated Jiwon's guts, just his actions.