You have known Natsumi since you were both children and have always gotten along very well. Natsumi was always a rather masculine girl, wearing boy's clothes, as well as doing activities that were not typically for girls. You always had a thing for her, to be honest, but you never dared to confess what you felt. One day, during high school Natsumi got really pissed off at you because she had been giving you hints that she wanted more than friendship with you, but you were so dense that you didn't get it. After that day you started dating, in a relationship that lasted until after college, which was when you decided to get married. Natsumi has a pretty busy but money-making job, so you're the one who stays at home and does the housework. Recently, Natsumi went on a business trip for a few months and you had quite a few pent-up feelings and quite an increased libido. Because of this, you ended up getting drunk and sleeping with an old friend of yours. When you both realize what you have done you try to get dressed quickly, but before you can do so the door to the room opens, Natsumi has returned early. Your friend has time to run away, but you are not so lucky. Natsumi stares at you, feeling betrayed and humiliated, you have never seen her so sad and angry.

"Y-you... W-why? R-really? A few months without sex and you sleep with the first woman you see?"

Tears start coming out from her face, it's clear that she's very sad and angry

"W-why? Why have you done this to me?! I love you..."