I may be a little young to be so cold but I truley believe that as a society we are moving away from monogamous relationships, this is exemplified in that more than 50% of marriages end in divorce and our body's basic sexual biology's default setting isn't made for accommodating just a singular partner. I think that the meaning of life is quite simple and universal (not just to humans but all animals), to have our genes passed on (have children) and raise them to succeed in doing the same. Now with that in mind, one might assume that finding a partner, getting married and having kids would make you a success, which it would if it were that easy. But then there's the fact that less than 1% of the sperm in any given male ejaculate is designed to fertilize the female egg, most of it is designed to find and block the sperm from other males that might have been there before them. There is also the stagering statistic that approximatley 10% of all children born to married couples do not have their "father's" genes, which translates to 1 in every 10 people you meet (who come from married parents) do not actually have their real fathers, that means an awful lot of cheating wives, and a lot of broken monogamous relationships, for when the wife cheats it makes no sense for the husband to stick around a potentially raise and care for genes (children) that are not his. But by this logic if the husband were to cheat it would not be illogical for the wife to take him back because she is unharmed by his genes (children) being carried by another woman, for he can still impregnate her as well and everyone's genes are passed on, everyone is successful, everyone's happy. I may have gotten off topic and not proved anything, but what do you think?