Female jealousy is based on a fear of abandonment.
"I'm not valuable enough to secure his protection and resources long term"
Male jealousy is based on a fear of loss of investment.
"I've spent all my time and resources on her and the kid isn't even mine"

My Utah friends, go follow my Group for Harmons's Finds & Favorites.
https://www.facebook.com/share/g/1S7e9HKyDx/

Every 18 year old should be taken on a field trip to family court to sit in on divorce hearings so they know exactly what happens to the 50% of men that go through the divorce machine.