Okay so let me get this straight
You have a career women a very masculine dominating women marry a submissive man. He becomes a househusband so she can focus on work. The wife (being a women who from the short dialogue clearly wants a dominant man) divorces him because he took on the feminine role of househusband and lost attraction to him. Dude breaks and acts very domineering and treating her like a sex toy. The wife enjoys it because he's being masculine for the first time in forever since they've been together and continues a secret relationship with him
Wow shitting on the concept of househusbands the doujin.