Responses
I think so too, or at least he may have a reason why. If I may read between the lines, the author's building up the story too much for Nanjo to just be an innocent victim resulting in a classic crawling top trying to get forgiven by the bottom. The power balance is also skewed for Nanjo he's the rich powerful one. But I'll just wait for his side to see if I'm right...

I want to believe this is all part of Nanjo's plan. He already knew Mokyeon and Sunhwa, so he let Sunhwa get close to him on purpose—all to grab Mokyeon's attention and make him obsessed. Why?! Idk, just let me be delusional lol