
I remember Hakdo saying that he kind of turns off when he sees Sangho crossdressing, so I not pretty sure about that.. hmmm... but in another hand I can’t not see another explanation ... maybe he just wanted to make things clear with his brother? because he got dressed knowing that his brother was coming... ahhh I don’t know ...

Maybe he got dressed up to work at the bar, went home because he knew his brother would come to visit but Hakdo was waiting for him. They started to make out while Sangho was still dressed up, Sangho forgot about the time and then suddenly his brother showed up.
But I'm not really sure either, that's the best I can come up with right now.
Spoilers for chapter 33
I'm pretty sure the author just wanted to troll us with this chapter ;) .
The first scene is between Hakdo and Sangho. After Hakdo said he wanted to have sex with Sangho, Sangho starts to overthink things again. He wonders whether he meant that he wants to have *sex* with him or that he wants to have sex with *him*. Hakdo interrupts Sangho's overthinking. He wants an answer and notes that he will say it again but only once and then the god damn scene ends. We're left hanging without a definite answer to what exactly Hakdo meant.
In the next scene Sangho dumps his ex for good and the chapter ends with Sangho's brother visting him. But apparently Sangho forgot that he would come to visit because he's sitting there in a white dress, a wig and make up and his brother is slightly confused about what's going on.
I personally assume that they're a couple now. He dumped his ex and when his brother came to visit he wasn't just cross-dressing, his lipstick was smudged. I'm pretty sure he made out with someone when his brother came to visit and I'm pretty sure that someone was Hakdo. But again, there was no conformation because this chapter was just one big tease (╯°Д °)╯╧╧ .