I actually really noticed that a lot of people in the BL community really like their (geumsun and 704's) type of relationship so I was prepared to be countered. It's okay, we have preferences ^^
I admit I've grown kinda soft throughout the years so seeing (or experiencing) an ambiguous relationship either feels painful or makes me uneasy.
I thought of that too. But I believe it's not entirely the reason why. BL webtoons (even other manga) usually do add a different couple to spice it up and attract different readers with different tastes as well. It's okay for me for them to be in the story, just makes me feel uneasy... Until I can assure that they will and do have a good future together. I don't like chemistry that hide too much from each other ( ̄∇ ̄") but I guess it's the mysteriousness (which increases the sexiness between the two) that the people like in this type of couple.
Gosh sorry I talk too much

Sorry :< I find geumsun and 704's relationship uncomfortable. I know there's a lot of similar relationships like this in BL in general already, the ambiguous kind of couple... I just really prefer the main couple, simple and doesn't necessarily hide anything.
I'm just saying this since I wanna get it out of my system everytime I see the two of them together and getting it on...