You have a very idealistic, fairytale idea of virgin females. Sorry to break it to you but they are still animals. They are still primitive. They will still cheat on you if they have the chance. Unless you find an ultra religious girl (almost impossible in this day and age) who won't cheat because she's afraid of being punished by God and you guys live in a tiny town with no Chads around, you have NO guarantee that a girl won't cuck you. Even in that perfect scenario I described, you have no guarantee. The only thing that will fully restrict a woman's hypergamy and prevent her from cucking you is if we had Shariah law or something like that. The fear of being stoned to death or beheaded for cheating would stop most women. However, there are stories coming from the middle east of women having been stoned to death for supposedly cheating on their husbands so I guess not even the fear of death is enough to stop some women.