Given the characteristic of the shou, he's has an apathetic and somewhat carefree attitude in a negative way like 'its bothersome' type of attitude. The way he responded to the stalker is very much inclined to the way the author depicted him from the start: he takes orders in silence even if he doesn't want to do it, he keeps quiet to the things he felt uncomfortable, and if its not touching his bottom line, he wouldn't do shit.
That is why even if their relationship started as toxic asf, there is something called action is wrong but intent is right but then everything is still wrong, that is what the ML is. He really loves MC but to the point that he can't tolerate not having him. His suffocating assertiveness can be accounted for being younger than MC (because his 'friend' said they were classmates and MC's worker said that the 'friend' who was following him is younger than him) and also his nature.
However, given these reasons which I can say is the main reason why they would have a long relationship, other reason is because MC teaches ML how to have a normal relationship that doesn't suffocates or hurts him. And ML follows what MC says now (from the later chapters). It is short, to say that they will indeed have a long relationship, but the story has given us clues of a character change (even for a little bit).
Rape aside (because tho is not right in reality), we can say that rape is really everywhere in ABO world. Their pheromones and estrus makes them 'lose their right mind' and thus rape. However, it doesn't justifies what is wrong but I'm also saying why is there a rape and how come its not being taken seriously. Their world setting (ABO world) is different from our world which is the reality.
I like everyone in this story because I feel like its quiet realistic. See how annoying Hyesung is? There's really someone annoying like him hahaha. Its really rare for an alpha to not 'mark' the omega that is in an estrus. Because that is the instinct of an alpha, but Dojun did not. He wanted Hyesung to have a chance to find his alpha, instead of marking him on their first night. He also tolerated Hyesung's unreasonableness because he felt guilty for what he did and also because he likes Hyesung.
As for the others who don't like how they have physical relationship when they are not sure of their feelings, its called fondness. Does people immediately know they love someone? Not always. And that is the case for them.
Anyway, everyone in the story is flawed but don't hate it too much.
DO YOU WANT A CONSORT OR NOT!? DO YOU WANT A WIFE OR A COWORKER?
Emperors: Why not both? ╮(╯▽╰)╭