This is just my take but I don’t think Taehwan is homophobic (unless I forgot something). When Yeonwu kissed him in his sleep during the high school flash back, he was trembling. That’s probably why he’s so disgusted with whatever Yeonwu does now. Yeonwu was once again doing things to him without his consent when Yeonwu was grinding on Taehwan while drunk. Kinda makes sense he doesn’t really like Yeonwu.
Yess.. Finally someone think like this too（/TДT)/
Yeah i think he gay (or bi or pan) but he hasn't realized it yet and his traumatic experience when he was younger caused him to have internalized homophobia (basing this from his flashbacks so just my theory)
Also v important detail too is that he doesn't really care about it. Like he still supports his brother. He's only bothered and angered when it's focused on *him* specifically so it adds more to my theory
jesus christ the amount of internalized homophobia this man has is INSANE. he thinks that yeonwu is filthy and that hes annoying but really taehwan desires to be intimate with yeonwu and that makes him even more angry bc he doesnt know what hes feeling :p