Psychologist Satoshi Kanazawa writes:
Pincott mentions studies which show that women on the pill reverse their body odor preferences and actually find attractive the body odors of men who are similar, not different, in MHC genes. So, in a sense, being on the pill would lead women to be attracted to, and possibly marry, “the wrong man,” genetically speaking. ...He cites a study to support his theory.
I began wondering if the widespread availability and use of the contraceptive pill might be responsible for the rising divorce rates. Historically, in the United States, the pill became widely available in the 1960s, around the same time when the divorce rates started rising. Cross-culturally, in societies like Japan, where the pill is not available, divorce is virtually nonexistent. Could it be that the divorce rate is so high in our society because so many women decide to marry the “wrong” men that they find attractive when they are on the pill?
Other studies show that women are driven by hormones in their male preferences:
The gist of it is that women prefer stable men most of the time for their long term relationships, but when they approach the most fertile part of their cycle they become more dissatisfied with those men and prefer more “sexy” men.
That won’t surprise anyone here, and it is merely the short-term version of the typical carousel-rider’s long-term mating habits: go for “sexy” alpha men when she’s young and fertile, and then settle down with a nice beta provider as her fertility dwindles.