I think it’s reasonable to feel discomforted at the idea of being with a slut. I don’t see how it’s avoidable. Men were always concerned with women’s sexual experience, men have a long history of punishing promiscuity. Regardless of why, it’s an inherent part of us, not to be downplayed.

A woman ignoring you (her future husband/partner), while simultaneously getting penetrated and impressed by one of many other men, coming before you, carelessly reducing her sexual market value for the person she will get with when she’s ready to settle down (you), it’s inherently disrespectful towards her future partner and as the partner, it’s a degrading position to be in, it’s just a matter of if you recognize it or not. Nobody should desire to be with a woman who decided to be with them on a whim, she could at least have the respect to save herself for you, but she lacked the concern or the restraint. Your wife, the person who’s supposed to have the most love & respect for you, would be literally serving you the worst version of herself, that she lavished to other men who didn’t even commit to her.

A man likely worked on himself, improved his whole life, to some degree, just to achieve a slut? Somebody who degraded & surrendered herself to many other men. Somebody who downright lack the ability to pair bond.

A promiscuous woman has been considered “repellent” & condemned throughout human history, usually more brutally. Being with a woman of this nature should feel degrading. A man who claims to not care is either lying, lacking options or lacking ambition which are all equally embarrassing.