Studies reveal that those with multiple prior sex partners have an increased risk of divorce and report lower marital satisfaction. The ability to emotionally connect with another person, known as pair-bonding, is severely diminished for those who do not end up with the person they lost their virginity to. There is no longer a special connection, like a secret you've only ever told to one person, after having multiple sex partners. Additionally, you are unlikely to remain sexually satisfied in the long-run if you've been exposed to multiple bodies. You will begin to think about and crave the sexual encounters from your past.

A relevant analogy can be drawn with different ice cream flavors. If you have only been exposed to one flavor, that flavor will satisfy you whenever you have a craving for ice cream. If you've been exposed to multiple flavors (vanilla, chocolate, strawberry, etc.), you will develop a diversity of cravings - one flavor is unlikely to perpetually satisfy your desire. It's not to say that one flavor tastes better - it’s about the cravings for variety that will arise from being exposed to other flavors

https://ifstudies.org/blog/counterintuitive-trends-in-the-link-between-premarital-sex-and-marital-stability

https://ifstudies.org/blog/does-sexual-history-affect-marital-happiness