Responses

It's because he's a noble. He's raised to not admit he's fallen to the level of submitting himself to a peasant. He's raised to rule, to take what he wants. Plus, he's unable to come out and say it due to trauma from his past. That's why his behavior is odd and that's why he's unable to come out and say what he truly means. It's explained earlier in the series that it's also the reason for his short and erratic temper.
So, yeah, I do feel sorry for him. You have to understand the character from the world they're from, not the world we're used to.
can't really blame Seungho for being impatient with Nakyum's attempts at avoiding the question. He doesn't want Nakyum's empty attempts, he wants Nakyum completely. It's weird, I actually feel sad for the both of them.