Depends on the woman. The relationship , etc. That's an over generalization in my opinion. It certainly does happen. Age is another factor. More likely to occur with a younger women than one that may be older. Also, with the advent of the internet manifesting sex got or used to be anyway, a whole lot easier. Not such a spectacular medium for that now. It was new, post an ad meet a girl and odds were one could get lucky and vice versa for the ladies. It was very fast and the replies flew in but years later it has slowed to a halt.
So we likely saw a major upswing on the "cheating" scale soo