Wives withholding sex as a means of manipulation, or even because they plain dislike their husbands, must have been common throughout history. But, it has been becoming more common. Here is a YouTube video with some statistics:
There are a few reasons for this I can imagine:
Falling Testosterone in Men
Married men getting uglier — primarily obesity
Married women getting uglier
Porn
To this we can add a few more:
Feminism making women more exploitive and manipulative than in the past.
More premarital sexual partners means less satisfaction with the man she married. (Alpha Widowing.)
More premarital sexual partners reducing women’s pairbonding capability.
More premarital sexual partners leading to a lack of trust in men, and a tendency towards exploitive behavior. (Slut to Harlot pipeline.)
This is leading to a decline in sex in general.
Even whorish girls don’t get as much sex as a married woman; or a woman in a live-in relationship. Ten guys a year is a lot. It is a hundred bodies in a decade. But that might mean 355 sexless nights a year. And those girls who are not so whorish often get almost nothing. They “put themselves out there,” and attempt to start a monogamous relationship. They end up in situationships or ghosted after a few weeks. Do this two or three times a year, and even without any intentional hookups, you end up with a high body count, and probably a lot of lonely nights as well.
Online dating, in particular, has made many men feel that they have been locked out of the “dating market.” This is not quite true — although women like to go on and on about their “high standards,” most of them are hooking up with what men would consider broke losers. The “high standards” thing is often complete cosplay — fiction with no real-world significance — or an actual effort by women to break the habit of hooking up with broke losers.
Cornerstone 