Woman has a right to stay or leave if the husband wants to marry another one??? How does that sound as a consolation? She does NOT have the right to keep her husband from marrying a second wife! How is leaving her husband, or staying and sharing, a good thing, if all she wants is to be the only wife (and come on, who wouldn't?)

And yes, men and women cheat the world over, and it's not limited to muslims or non-muslims, as TG1234 rightly mentions. I would say that Muslim men (when abroad) are sexual predators, and back home they are all proper and well-behaved. So a Muslim man can have his 4 wives, plus up to 4 misyar wives (legally!), and if they are not enough for him he can still go frolicking in Casablanca or Manama! So much for monogamy... And if that is not cheating, then I don't know what is. At least non-muslim women have certain rights (unlike muslim women) over their husbands, their children, and their property - so a non-muslim man will think many times before attempting to cheat or choose another wife.