Yup. What Badge said. Monogamy is not a natural state for primates.Monogamy is a construct brought in by the church to differentiate the western Christian religions from the polytheistic religions of the time. You met a lady you got married that was it. One marriage under God's Eye so that way infidelity to that marriage was an afront to God.
Being in a relationship with only one partner guaranteed a diversity in the smaller population groups that lived in villages and towns. Generally it also helped stop the spread of disease. Or bad mojo.
It was church designed to stop animalistic behavior in mankind. We are supposed to be a thinking breathing higher than the animals life form created in god's own image








