
What was the reason why he broke up with Kangwoo? Someone pls tell me

Actually little things like this get ppl broken up because they think it's little. Hannie was insecure with himself and it's become even worse after he came out as gay to his family. That's why he couldn't trust people. He was desperate to hold on to the relationship as that's the only intimate relationship with people he had a that time. He was forcing himself too much it became unbearable. That's why he broke up with him.
Kangwoo was not entirely blameless either. He's a serious people pleaser and that's why he didn't say anything back or ask for anything. These two suffocate each other without knowing it and call it love. They need to work on being mentally healthy themselves first before being in any relationship.
I want that blonde girl to just go off!!!