Is this thread an attempt to explain why men cheat? I am no expert in the Bible or Anthropology. I know this, it is not fair to go sleeping with other women when you have committed yourself to one (by church or legal marriage) - if you do, you are being cruel to your wife.
If you feel monogamy is unnatural, tell your wife/fiancee from the very first, (and see if she will agree to get into that union). What men want is to get a wife, and since no sensible modern woman will agree to a polygamous arrangement, we go down the monogamy route with its strictly binding terms, then midway somewhere, we expect women to understand and forgive away quietly if we develop a roving eye, foisting upon them arguments such as 'monogamy is not natural' and 'men are visual animals'. No one will stop you from cheating, its a free country, but if you do, its cause of a moral character fault and inability to keep promises. It really is that simple.

@jasonhill: I agree with you on being honest upfront. If you read my post again, you'll see I wrote "If you feel monogamy is unnatural, tell your wife/fiancee from the very first". My problem is when it starts as a monogamy in the understanding of the man and the woman, then the man marries other wives. In most of the cases of current polygamous families, the guy most likely didn't tell the first wife he will take other wives;The first wife decides to live with it.
On the modern sensible woman, perhaps I over-generalized. My mistake. You might just find a woman who can accept such an arrangement. Here in KE things are still a bit grounded. I would like to hear just one voice from a man who told his appropriately matched (ideal, no other factors such as money, the ticking biological clock etc etc) fiancee that he intends to be a polygamist (perhaps also told that council of ruracio), and succeeded to go on and marry that woman.

The following book makes a very persuasive case to the effect that Monogamy is abnormal: Sex at Dawn: The Prehistoric Origins of Modern Sexuality by:
Christopher Ryan & Cacilda Jethá

According to the authors, polygamy is the default setting for....men and women, both.

@scout_boy, you have not provided any biblical evidence at all that teaches against polygamy. In addition, you are making up dreams in your own mind about how you "feel" these men "felt" about their wives, when you really have no idea. If you are incapable of loving multiple women, then that is your issue, not that of other men.

Though it is a different form of love, one can love their children equally; one can love their wives equally. Sometimes one needs more attention than others.

If you look earlier in this thread, you can find several examples which I have provided that DO support polygamy, carried out by God's chosen men that were blessed BY GOD with wives.

The new testament came to fulfill the law, not to get rid of it. The essence of the new testament is that Christ shed blood for the remission of sin; the ransom has been paid for us; so where in the bible exactly does it do away with polygamy in favor of monogamy? This has nothing to do with remission of sin.

You would be well advised to do away with what some "man" or some "denomination" has told you, and work with what sayeth the Lord. A denomination or a man has no heaven or hell to put you in.

Please advise.

Best,

Hill

Am not so sure. The bible was not written in English