“A person’s history of sex was a predictor of infidelity, too. Men who reported having more short-term sexual partners prior to marriage were more likely to have an affair, while the opposite was true for women.”

https://news.fsu.edu/news/education-society/2018/02/12/lead-us-not-temptation-predictors-infidelity-divorce-highlighted-new-fsu-research/

https://pubmed.ncbi.nlm.nih.gov/29431460/