This whole thing is written for the sake of making you go "How dark, how edgy, this world is dark and edgy, did I mention how dark and edgy it is? Look, there's predictable rape, murder and betrayal!"
It's sad how uninspired these things are nowadays. If you can't write a provocatively dark theme without forcing rape and ntr for no reason other than "Because my world is dark", please try writing a different genre. Maybe you're a masterful romance novelist, maybe you can pull off romcom perfectly, but this ain't it.