guys im tired , novel people says he stay like this though out. its boring and disgusting

then leave. no one’s forcing you to stay, bae

Please note that ilay was born a psychopath. He doesnt feel remorse at all. And in this season he's feeling something towards taeui that he hasnt feel before. His brother already said before, ilay is not good at keeping himself check when something is bothering him, and right now, Taeui is the one bothering him. He wants to kill him but he knows he wont feel good if he does. He cant figure out his feelings and what he wants. Plus Taeui wants to run away from him and kinda scared of him, so his hunter instinck kicks in. He wants to own taeui. But wait till you get to the next season when both tae and ilay acknowledge their feelings. These two fits together. No one can handle ilay but Taeui, and yep, our boy taeui worries about ilay so much he wants to own him too.