@ls hk
Why not look at the situation through Jihyun's eyes?
1. Chiwoo hit Jihyun first so it was a fight.
2. Jihyun didn't push Chiwoo, it was an accident.
3. Chiwoo literally used Jihyun's feelings and gaslighted him even though he knew how much he loved him.
4. Jihyun's dad constantly physically and mentally destroyed him, his classmates distorted everything and spread rumors about him, his friends betrayed him and set him up.
I love Chiwoo and appreciate the way he supported Jihyun when the whole world turned against him but there is no denying that he was also the one who broke him.
P.S. The blonde raped Chiwoo only in the sequel, but already in this part you can see how he manipulated him, guilt tripped him, violated personal boundaries, etc.