The most confusing thing about this is the actions of the mc’s parents. His parents want...

The most confusing thing about this is the actions of the mc’s parents. His parents want him to be proud about being an omega but hide the fact that he’s an omega and so is his father? Why? For him to live a “normal” life? At least tell him that he is one so that he can have at least some level of awareness. Mc’s parents also agreed to a marriage so the imperial family would hide records of the mc being an omega, which implies that omega and possibly alpha identities are made public. The doesn’t make sense if you’re worried about them being kidnapped since they’re “rare”. I guess the argument for the parents is they were worried he’d be targeted if they make it public he’s an omega so agreed to the marriage to hide it. Maybe they didn’t tell him he was an omega so he wouldn’t tell other people? Either way it’s weird.

Everyone else actions make some sense. Since alphas and omegas make up 1% of the population, plus dominant ones might be an even smaller percentage, meeting one close in age who can small the prince’s pheromones is “fate”. The prince isn't even acting that bad, just seems awkward. The main issue still seems to be the fact his parents never prepared him to live as an omega or as a crown princess despite knowing about both.