Are we actually meant to be completely monogamous
Men, yes emotionally, but not necessarily physically. Because it gives their genes the best chance of survival.
But for a man, to have a woman who is not physically monogamous, whatever she feels emotionally for other men, is an absolute disaster ……his genes stand much less chance of surviving if he spends his time and effort raising other men’s genes.
Woman just need any man with an emotional commitment, for their genes to survive.
Hence the irreconcilable difference between men and women. Men need a woman who above all else is physically committed, whilst women on the other hand, need above all else, a man who is emotionally committed. There’s a fair bit of difference between the two.
And yes, it’s all down to just animal instincts in the end I’m afraid.