You must be aware that most men (and also not only a few women) are by nature not monogamous. This nature makes itself even more forceful when tradition and circumstance stand in an individual's way.
Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.
I always had this thing, when I was younger especially, I didn't want to do movies that much. I found they took a lot out of you and they were exhausting for me in a lot of ways.