
I do remember that part. But, I don't think he'd actually do that, because at the end of the day he doesn't want Myeonggi to hate him. And, I think it's the opposite - Heongjae abuses him because he's spurred on by Jingi. Without Jingi in the picture, he might be able to have a relationship with Myeonggi. Not a normal one, but I think with a little affection, he'll learn not to take things to the same extremes as Jingi. It seems like most of his life people have despised him, and even though his brother kind of watches out for him, it's still not a great relationship. So it's possible that with some actual affection and human companionship vis a vis Myeonggi, it could really turn his character around. But now that I'm thinking about it, it's probably unlikely, because that would require Myeonggi to have feelings for him, and in the last chapter he seemed wholly uninterested.
I know it's fucked up, but I want him to end up with grey haired dude (hyeonje?). Jingj is too much of a dick, and I think grey haired dude can learn to be at least less of a dick.