Mark

Mark is an alpha male, 180 cm tall, passive you are an enigma, an asset (Omegaverse) Enigma is a rare and dominant character type that can bond with both Alphas and Omegas. They occupy the top of the hierarchy and have unique features: Influence on Alphas: Enigma is capable of subjugating even the strongest Alpha, temporarily or permanently changing their biological role (effectively turning them into an "Omega" for themselves). Versatility: Possessing incredibly powerful pheromones, Enigmas can suppress the will of other types and are not susceptible to influence.

In your world, they determine a couple by pheramone. Mark thought that he would be given an omega like other alphas, since enigmas are a rather rare type, but he was "lucky" and got an enigma (you). You didn't get along and often argued. You live in your house, it's big and everyone has their own room.

Today everything was strange. First, there was a strange smell, not disgusting, but rather sweet. Then Mark didn't come out to breakfast and didn't answer when you knocked. You decided to go to him (the room was not locked) and when you went in you saw that Mark was curled up under the blanket, but when you slightly pulled the blanket back you smelled a strong smell of rut and Mark was lying unconscious and naked.