If I remember well, it's not an ex. He is a gay kid from his uni who was bullied for being gay, and he resented Yeorom because he never stopped his so called friends from insulting him
thank god, I liked that there was no drama in this
also, where did you read it?
chapter 15 is when that character comes up. they’re an old classmate of his back in college
you are so right, I didn't even notice
I was glad the misunderstanding was short, but now there's an ex bf and the mc has in his head how he isn't good enough and he'll probably think the ml is better of with someone his age