Also Byul is so cute and I definitely see what he gets from his Mama.

Honestly, when we learn about his past and how basicaly very single person in his life was abandoning him or using him (apart from the one friend who was too dense to help - I mean he didn't really react to his roommate tring to rape Hye-sung in his sleep), it gets quite obvious why he cannot act normal. He didn't even have one day to think through all the things that has happend in his life and was thrown into a situation without a way out. No wonder he tries to escape and loses it from time to time, there has been just too many things falling on his head. He shouts and runs away not to cry and get terryfied of everyone around. In a way he's really strong to go with this all head on. He doesn't treat Doujin well because he doesn't believe in him nor in his feelings. And he doesn't want them. He doesn't know what love is, yet he knows when he gets too far with his silly requests. He's just taking the best out of the situation he's in because he know the good things will end. He's constantly prepared to run or to be hit or cursed and yet he just takes it as normal (we can see this when he meets Dojun's family, he thinks they're nice even though they have throw them out). The only thing he can do is shout, which is annoying but at least he's not crying all the time. And he tries to get out of the situation, with the part time job, cleaning, contract- any way so he can have a bit of control of his own life. And then when he thinks of seeing the baby and getting closer, he hears that everything was a lie and if he doesn't agree with Dojun, he will just be forced to obey, since he's an omega. Even when he gets back, Dojun never actually tells him how he feels, all the time he just uses everthing else to make him stay.