Because of how his ex boyfriend broke up with him, he became bitter I guess and would make other couples break up. So now that hes finally in love again it turns out that one of the people who was a couples he broke up ended up being the guy he likes little brother. So it what he did in the past came back to bite him in the ass. Pretty much.
Omg so he was really breaking relationships, I thought it was this only couple when he liked the seme
Yeah apparently he did it for a long time till he met the seme it seems.
Well that makes it more exciting fot the next chapters, can't wait
And thank you for explaining
Can someone explain the end because I'm really confused now?