The Military Wife Woke Up: Chief, Let's Break Up.

The Male Protagonist, an Officer, Kept Giving up the Female Protagonist's Promotion Opportunities to Others, and Was Eventually Divorced.

The male and female protagonists are both officers. The male protagonist has a higher position than the female protagonist. Every time the female protagonist has a chance to be promoted, the male protagonist suppresses the female protagonist and gives the female protagonist the opportunity to others. Finally, the female protagonist files for divorce.