I agree with you ( ̄へ ̄)Hyeongjo is very possessive, if I'm Minjae, I will be extremely annoyed. I hope there will be more progress to their relationship but unfortunately, it has already ended ╥﹏╥. Tho I find it irritating, they're so fucking cute together, I love them all the same (≧∀≦) I'm just glad they're happy.
I don't think I'd be annoyed if I was Minjae, because I'd probably just think that Hyeongjo was doing it because he loves me so much, and it seemed like that's just what Minjae thought too, and that's kind of the problem. I mean just because someone loves you they can't do whatever. I really don't think a relationship like this will last very long, but it'd be good if it became a healthy relationship and lasts, because as you said they are very cute together.
They're in such a toxic relationship, Hyeongjo is honestly so controlling and manipulative, like Minjae wasn't even allowed to smile at Jinhan.
Everyone in the comments are so content with their relationship too, calling it cute and stuff. I honestly feel bad for Minjae and I think it's scary that everyone thinks a relationship like this is okay.
And please do not misunderstand, I actually really like this manhwa, I just think it's weird how the majority sees their relationship.
Edit: If you disagree with what I've said please tell me, I'm very interested to hear what other people think. Of course if you agree with me your comment is also welcome and appreciated.