Posted on September 3, 2008 by adminVasopressin and Infidelity Variations in a gene which control the distribution of vasopressin receptors in the brain have been linked to marital discord in both men and women. Men with two copies of the allele had twice the marital problems of men with no copies. Washington Post coverage Weird. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)