I thought women were more monogamous. But the oposite is true when you think about it. We all know it deep down but I suppose we all read too many glossy magazines and watch too many soaps.
Weininger:
I have to admit that the popular opinion as to the monogamous nature of women as opposed to the essential polygamy of the male, an opinion I long held, is erroneous. The contrary is the case. One must not be misled by the fact that a woman will wait very long for a particular man, and where possible will choose him who can bestow most value on her, the most noble, the most famous, the ideal prince.
The motive for honouring a pledge can be found only in man; for a woman does not understand the binding force of a given word. The examples of female faithfulness that can be adduced against this are of little value. They are either the slow result of the habit of sexual acquiescence, or a condition of actual slavery, dog-like, attentive, full of instinctive tenacious attachment, comparable with that necessity for actual contact which marks female sympathy.