It seems like you're more concerned about how other men see your future wife than actually having a relationship with a woman.
By all means, don't marry the town bike when it's obviously going to cause issues in your relationship, but nearly everybody around you is having sex- only difference is your brown waifu is getting railed by handsome white guys in secret so her parents wont beat her to death.
Someday you're going to want to have an actual sexual relationship with your wife right? Unless you literally just want arm candy to cook and pop babies for you, you're going to have to come to terms with her being a sexual person. Even if she wasn't having sex, I'm positive she spent her highschool and college days fantasizing about getting her snatch pounded by the captain of the cricket team or whatever.
It seems like you're more concerned with how you'll look in the eyes of some fantasy audience of every man your wife's ever had sex with than actually having a genuine relationship with a person. Do you fantasize about your gaining the approval of all those tall white boys that called you a goatfucker in highschool when you jerk off too? Fag.