>>81661164That's not really how evolution works. It's more like, women who weren't reciprocal of rape didn't survive long enough to reproduce and raise their children into adulthood. They would either die from injuries sustained during gang-rapes, be unable to raise children (due to aversion to the father) or would abandon their children shortly after (due to lack of parent-child bonding)
And yes, male humans are evolved to gang-rape. The glans of our penis is shaped to scoop out or displace competing sperm. We have the largest penis of all the great apes, which suggests penis size and length was selected for, possibly to deposit sperm deeper in the vagina where males with smaller penises wouldn't be able to scoop it out.
So it's not that women evolved as a "coping mechanism" but rather through process of elimination. Females who were aroused by rape had a better chance of surviving, carrying children to term, and raising those children to adulthood. The fact that women are unfaithful is also a reproductive strategy. Think of it as "diversifying assets". The more genetic variation in your bloodline, the more resilient they are. Putting all your eggs in one ballsack is a bad idea. Women cheat for the same reason men cheat: Security through diversification.