Writersoul: romantic feelings? Men? As a rule, men have physical attractions that involve fewer emotions and more biology. Not to say physical attraction can’t lead to infatuation, but that is further down the road. In other words, men don’t need any meaningful relationship to feel strongly attracted to something. Women, as a rule, do.
Take a look in the world when men and women don’t feel constrained by morality – who is trying to get what from whom sooner?
Now the question is, what does a man who desires a woman-friend who has no feelings for him (yet) do? Answer: manipalatively act more romantic. It works. Often. Particularly on sheltered innocent girls. But no romantic feelings are involved on the man’s side.
Point: men have biological drives that motivate them to fool women into physical relationships that women often later regret.
The cousin question is a biological one for men. And I have heard many men openly discuss that they find their cousin attractive. Sister? Never.
As always, exceptions to rules exist in every context, and my view thankfully would be vehemently disagreed with by modern feminists. That doesn’t prove the truth of what I’m saying, it just adds some points in its favor.