How to raise a son who won't cheat

American experts say it doesn’t matter who is the primary caregiver — mother, father, grandmother, kibbutz or nanny — sons need affection with boundaries, friendships with girls and permission to experiment with sex.

“Clinically speaking, infidelity happens much more when the male did not grow up with a healthy model of the relationship in front of him,” said Diamond.

Many notorious adulterers didn’t grow up with good parent models.