I'm kinda lost in the plot but what I think that Seunghyun is still frustrated with his beloved hyung having straight marriage and Yuta poked him right in the center when he told him it wasn't admiration but that he's in love with that blonde hyung. Also, despite being Yakuza and partially engaging in things with Yuta back in that hell hole he never considered himself to be anything but straight (saying that because he never initiated anything in that place just did what he had to do, and never slept with a man outside of that place). Even tho it's clear he's at least bi. Than when Yuta appeared again, drugged him and assaulted him, he was mad and humiliated, so he 'returned the favour' for a few reasons. But his soul is not rotten as it is in the usual gang members so he's mad even for the reason that he's doing all types of for himself unusual things when he's with Yuta. Plust there's thing with casino and he's fear he'll disappoint hyung due to making deal with Yuta. Few mor things like hus past, how hyung saved him from the streets, he has a lot of things bottled up, and Yuta just kbow how to be it willingly or unwilling unleash them, but that would be what I think, maybe I'm wrong tho.
With one sentence, Denali is river in Egypt.
Seungyun is internalized homophobe, Yuta and his complicated feelings for his hyung are the proof of his sexuality. Hyung is safe bc everything was one sided and he never make any advances towards him to conflict with his sexuality while Yuta constantly demands Seungyun to preform homosexuality which makes him hostile towards Yuta yet you can’t trick your heart and deep down we see Seungyun having feelings for Yuta. They especially show up when Yuta isn’t actively pursuing after him, when Seungyun can put his guard down and not be “attacked” by Yuta
what makes me confused is why seunghyun is so hostile towards yuta if they did share a past…. i get the animosity from yuta because he was left to rot in that brothel when he thought the sh is his savior….