I love seeing different types of genuine reactions like this after playing the game. Not the usual hatred for the genre, but a heartfelt reaction to the story.
What we have here is a loving-to-hate type of situation. Nat's betrayal plot seems to have affected you the most out of all the paths. Yes, it hurts if that's your poison, but that's the poison that works best for you.
Welcome to the angst part of cuckolding, friend. If it's really not your cup of tea, you would have stopped playing this game a long time ago. Yet, here we are. It's what some people desire from a story rather than a flowery one. Some accept it; some don't.
Don't worry. This scene isn't shoved down the throat unless you are on the path to turning Nat into a queen of spades. But no one is here to judge you even if you take a little peek.