So the general consensus among TRP is that women who have higher N-count have higher divorce rate, more likely to cheat etc. but from my understanding TBP seems to think that this is bro-science and lower divorse rates can be attributes to religion. Ill be honest I used to think so too, but turns out that research suggests otherwise.

According to this article this article there is research to suggest that higher n-counts lead to less happy marriages, but what is significant is that the second and third chart control for other factors like previous divorces, Socio-economic status, and most importantly religiosity. The probability of a couple reporting an unhappy marriage change very little when controlled for these other factors. The author even says

"In sum, the surprisingly large number of Americans reporting one lifetime sex partner have the happiest marriages. Past one partner, it doesn’t make as much of a difference. The overall disparity isn’t huge, but neither is it trivial."

The data looks pretty much the same for both men and women.

What I found even more interesting was another research paper which investigated a Dopamine receptor gene and infidelity.

Ill copy the relevant parts of the paper:

" One specific candidate is the dopamine D4 receptor (DRD4) gene, with a 48bp variable number tandem repeat (VNTR) polymorphism in exon III of chromosome 11. This polymorphic region typically includes 2 to 11 repeats. Individuals with at least one allele containing 7 or more repeats (7R+) show both reduced binding affinities and receptor densities for dopamine neurotransmission in the ascending corticomesolimbic reward pathway that extends from the ventral tegmental area to the nucleus accumbens, prefrontal cortex, and other cortical regions ."

" Humans that possess at least one allele 7-repeats or longer (7R+) display behavioral phenotypes associated with attention deficit hyperactivity disorder (ADHD), alcoholism, financial risk-taking, disinhibition and impulsivity, and sexual behavior. "

If you look at the charts, people who are of the DRD4 Genotype are more likely to: report Promiscuous Sexual experience, report higher extra-relationship sexual experiences, and have a higher average number of extra-relationship sexual partners.

Based on the data it seems pretty clear that more promiscuous people have a higher likelihood to be in unhappy marriages and the cause is in part genetic. So I don't think its unreasonable at all for anyone to out significant weight in a potential partners sexual past.

Edit: Spelling