
I like joowon and heeso but statistically(I've been reading yaoi for years) it's more likely he'll end up with joowon. This is how most stories like these goes. Initial childhood seme becomes an asshole, but hes an asshole that is really liked by the uke. Rival seme comes and tries to take uke from initial seme, seme realises he needs to change, seme changes and uke goes back to him. Now they're several variations of this, but this is how this story is likely to end if
1. Heeso is ACTUALLY in live with Joowon (I've read so many yaoi where the uke found out he never really loved initial seme but just felt kinda stuck with him for some reason)
2. Taku is not a good person. We dont really know this, we dont know a lot about him, hes mysterious. Writers usually try to end their story happily so a joowon and heeso final ship would almost be 80 - 85% valid if Taku turns out to be some jerk or psychopath.
3. Joowon does not fall out of love(or was never in love), or does not decide to keep being an asshole.
It is unlikely the seme wouldfall out of love statistically(in this sort of storyline not in like yaoi generally) but it is still a possibility and it could happen here too, he could fall in love with someone else and both he and heeso would just be friends and be happy with whoever they end up with.
So if all the events above happen, statistically theres a 90-95% chance they end up together.
PS: ALL MY percentages are raw estimates that I came up with which I feel are sorta accurate, dont make fun of them
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