@YUKI And that's WRONG.
Especially for a 5 panel characters.
I mean, if you have the time and energy to create for a 5 panel side character (that not even a side couple!) just to explain how a girl-only-dating guy magically find his one and only love who is a guy and marry, then you should have the time and energy to break this ridiculous cliche that literally everybody is gay, no matter what.
It's just annoying. (especially when half of the plot is about how homophobic their surroundings could be... or, like here, even this certain 5 panel side character didn't tell his friends at first it's not a girl this time because "what will they say"... In a fuk*** omegaverse... It's really annoying and ridiculous, and add nothing to the plot but unnecessary scenes.
But the most hurtful part of it is these friends were in the story at the first place is to show how unique this world. Not just because the unusal physique or behaviour of the omega, but because this is a world where alphas and omegas and betas, straights and gays and bis could be friends and hang together without any problem, go to the same places, do the same stuffs, etc. No debts, not no forced omegas, no class discriminations, no shady secondary-citizen treatments for any of the mentioned minorities, nothing... but no, NO, you just had to ruin everything, and turn everybody to gay... it's literally harmful to the whole story and ruin the whole worldbuilding proccess.)