A good question regarding this is how many peoples response was based on societal norm and how many people responded based on having tried different models?

Many people are only monogamous because that is how it has always been done and what is expected of them by their partners.

Don't get me wrong I am not being cynical, there is a place for monogamy - that place is when both people feel a desire to be monogamous.

I do question the validity (honesty?) of remaining monogamous out of expectation rather than actual loyalty.

But what do I know...