Students of animal behavior have learned that the presence of a female decoy or two near a male makes real females more likely to mate with that particular male. Among human females also, nothing succeeds like success. I hear anecdotes about women refusing to date thirtyish bachelors because, “if he’s never been married, there must be something wrong with him.”
In college, I observed decent, clean-living men left alone while notorious adulterers had no difficulty going from one girlfriend to the next. Commentators on contemporary mores rarely show awareness of this irrationality in female mate selection. I recall seeing an article some years ago in which a planned new college was touted as a boon to young women seeking “Christian husbands,” on the naive assumption that they must be doing so. There was no talk of helping young men find faithful wives, of course.