Laiae:
Thank you !!
I tried to find some info on this character but what happens really to him at the end ? I understood that they gave hints at multiple times, and I tried to watch the last episode, but couldn't find anything. Does he find out he's not gay or do they just don't answer this question ?
They drew out the mystery behind his character's sexuality. Toward the end, there was a certain scene and many fans interpreted it as a hint that Bing Geu Re and Kang Joon HeeI (an openly gay character from Reply 1997) would end up together. He ended up with a girl instead.
I didn't personally think Baro's character would end up in a gay relationship, but I do think the way the scene was framed was deliberate. It seemed sort of like baiting, like the show runners were making a joke.
I don't remember the details clearly, sorry, but I do remember quite a few international fans were angry about his story line so I figured it might interest you.
I dug up the Dramabeans post about the episode. You can read the comments section and maybe that will help explain it better than I did. Sorry for the long post!