I think he has some kind of trauma on being in a relationship or something because it was subtly shown in some chapters, that's why he's afraid of letting Jaehee inside of his heart but I hope we can see a backstory of Dojun in the future chapters.
he basically just thought if he’d date anyone his grade will drop. So to be safe he didn’t want to date the seme because he was busy with study and relationship would take a lot of time
Well since he’s an orphan with no money he basically forces himself to work hard
I'm crazy for the art but The only thing I find kind of disturbing is that I don't understand why he likes him but doen't want to date him?
It is ok if there is a justified reason behind it