
I have a feeling Seungho was put up for sexual abuse by his father like some kind of collateral. There are some studies of victims of abuse that turn into abusers themselves (Google it if you want to read more). I think that's why Seungho turned into the way he is right now. I'm not excusing of his past behaviour. But he, unfortunately, is a victim of his own past abuse too.
I'd rather choose Monica Lewinsky over Monica Esbott