
I absolutely concur. I urge people to go back to chapter 12 where Hyesung is having a conversation with his friend and his friend suggests that maybe Dojin actually likes Hyesung. Watch Hyesung's reaction; it has genuinely never occurred to him that Dojin might have feelings for him. In fact, he seems a little flustered and confused by the idea, but not repulsed. As he's walking home, he's mulling over their conversation and he seems concerned in his inner monologue when he says, "what if it's true. But...I don't like him..." Right afterwards of course, he hears that Dojin sees him only as a muse.
Recall that up until that moment, all his encounters with alphas as an omega have been of a forceful and dubious nature, and none of them within his control. He sees alphas as predators who want only one thing from him and inherently mistrusts them. Remember when he woke up finding that alpha looking at him? Not only did he freak out and leave, he refused to even go back after having been nearly assaulted at that club/brothel. The extent of his earlier reactions explains the context of his disdain and constant distrust of Dojin IF he believes that Dojin is using him. Because he doesn't believe that there's genuine affection on Dojin's part, he therefore treats him as he does all the other alphas he's met as an omega - because to him Dojin is EXACTLY like the other alphas he's encountered as an omega.
I'm not saying Hyesung would automatically jump into Dojin's arms if he learns of Dojin's feelings, but I do think he would have given him the benefit of the doubt and allowed Dojin to at least convince him of the truth. Hyesung is too dense and naive to figure it out on his own, which is why Dojin should have made his intentions and feelings clear from the beginning. However, we wouldn't have much of a story if they were honest, anyway ╮( ̄▽ ̄)╭

I suffer for Hyesung, that he had sex just for four times and is already pregnant. Two times against his will. These last two actions must Hyesung feel that he is only used by Dojin (like a sex toy and muse).
Therefore, I also think that it is difficult for Hyesung to admit true feelings for Dojin. I think that he just started liking Dojin before Dojins first 'mistake', so he
was also jealous of the other omega. But then Dojin destroyed the feelings Hyesung
just started to built in this heart (that has never been loved by anyone before).
( ̄へ ̄)If you don't know love well, it's nearly impossible to notice when someone likes you. Dojin really has to talk to Hyesung. Now that he is sure about his feelings (I guess he is since the "my omega" part).

If only everyone else was able to view Hyesung's actions with a little empathy too! I think everyone's too caught up with choosing sides and getting frustrated with Hyesung's lack of reciprocation that they're not trying to see things from his perspective.
And I agree, I thought that Hyesung was gradually coming around to consciously understanding the growing attraction he has to Dojin until the "mistake" happened. That mistake cost Dojin whatever goodwill he was building with Hyesung and now Hyesung sees him as just another arrogant alpha looking to take advantage of him. Here's hoping they start getting on the same page soon. It really does suck to see Dojin so devoted and invested in the baby while Hyesung is not.
Ok but, I must not be the only one noticing the little things hyesung is thinking about, he is CLEARLY misunderstanding things here, he's thinking that dojin only wants the baby and not him. In his mind "dojin is only using him, he' wants hyesung to stay because he's using him as a muse, and he's being good to hyesung only after he found out abt the pregnancy" that is why he made the contract to secure himself and his future after dojin assumingly take the baby. He probably thinks dojin will not need him anymore after having the baby. And the reasoning behind his behaviour is gonna be explained in future chapters (yes, i've read the raws, but no spoilers here lol). Again, this is a misunderstanding on hyesung's side and miscommunication on both of these people, hopefully they'll make up and love each other soon :) Anyways this is just my opinion i'd love to read from others too