Responses
Yes. He was overwhelmed by being exposed to it with the cologne Hye-Sung brought at the party, what happened, yea he was exposed to it, now we have to play a waiting game of either time skip to explore more or the next chapter will give us a really good explanation. I think Hye-sung was also like mid 20s, like a late bloomer.

I wouldn't be surprised if Byul was om instead of Alp later. His mom was like that, so we don't know. (๑•ㅂ•)و✧