he has a fiance bro
Doesn't matter. There's been plenty of BLs where the ML has a wife or girlfriend but still decide to chase the MC.
"Rocket Science Love" for example. He had a fiance too.
No that doesn't happen, Geon and him are just friends going forward.
This doesn’t seem like the type of story that’d do that… like at all lol. He looks like the only concept of relationships between men he understands is familial or platonic, and he’s about to get married. Sure if the author sucked and this was a bad, cliche, and stupid story, they could shoehorn “oh but the coach is gay now! >:D”, but like I said, this isn't that kind of story.
If the coach starts "realizing" that he actually loves Geon and tries to get with him romantically I'm gonna be pissed.