or maybe it's just for the plot convenience... but your opinion makes much sense. I think the author is a very competent and thoughtful one when it comes to his/her work and therefore would pay a lot of attention to even the smallest details. Seungho used to kiss with his eyes opened and it makes him look like having no emotion at all. But in the recent chapters whenever he kisses Nakyum he fully shuts his eyes...
I also took notice of that; he does close his eyes now. Both him and Nakyum are becoming mutually attracted. Byeonduck is quite competent as you say, so I really am hopeful this is truly a shift.
Or maybe Seungho may forget this all in the morning, just like Nakyum did when he was drunk their first time.,,
I don't quite think so lmaooo. If he has enough energy to bang while being ill he should have the balls to remember it all.
At this point I think the plot is already settled that Seungho must come clean about his feelings. If he continues to brush it off it'd rather be too lengthy. What the plot should follow next is Nakyum's reciprocation, Seungho's past, the assassin, Jiwha's revenge (probably), father issues and the re-encounter with the learned Sir. I mean there's still a lot left and the story has been built so thick it shouldn't be any lengthier. And with that, I trust the author's competence.
There is definitely symbolism behind this sex scene. In spite of Seungho being under a feverish haze, it seems he’s truly coming to accept what he feels for Nakyum. He made love to Nakyum in the open and normally, he does this behind closed doors. The magnitude of that...well...I’m still fanning myself over here.