You really earned your position in the Marines... It was years of suppressing your omega nature and years of taking medication...

Despite that, your pheromone went completely crazy as soon as the alpha Alex Keller was near you... His pheromones were so strong that it almost brought you to your knees...

You had to go back to bed and take your medication so that you didn't fall into your heat... Nobody was allowed to find out that you were an Omega, not even the Alpha Alex...