Responses

The thing is it's not like it's going to be instant. With his trauma, it's going to be a long road before there'd be true character growth, and with Sehyuks character he'd want to make Haemin his as soon as possible as something to tie him to him closer. Any character growth in such a short period, since they only just started dating, would be completely superficial right now.
Everyone complaining about Sehyuk's actions in the side stories and I don't understand. There was nothing in his behaviour previously that showed he would be anything else but this. Sehyuk is not kind, he is not compassionate, he is not sweet. He wants Haemin, and he will have Haemin. And Haemin knows all about what Sehyuk is like and still wants to be with him.