I don't understand how people think TJ is the end game (at least in the beginning.)
When i first read it, I was under the impression that Jo was the end game because if TJ and Ian were in that serious level of relationship or that if there was no problem with TJ, there would be no room for Jo in the first place.
I don't hate TJ, but I feel like the author wanted to make him a villain-ish character at first with less screen time, but when they realized that TJ had in fact a lot of fans, they turned this manhwa into a messy love triangle (??)
Kinda like Love or Hate or Wistful Summer.
I would love it to be a poly though, but chances are, the author would go back to their original plan for the ending.