I have my theory (just a theory) that women who piously wait for marriage and men often sabotage their expectations by having unrealistic standards. Perhaps they think "Oh I've waited so long God, surely I deserve only the most perfect male specimen as my lover, partner, and husband."
Of course behavioral economists have already figured this out long time ago as
sunk cost fallacy. It is the idea that if we have paid with time, money, or energy in pursuit of something, then we must keep up it lest we lose all of our sunk costs. It is a fallacy because the past is irrecoverable, and the only thing that matters is the present. The sunk cost fallacy holds people in their misery because it works through our emotions. Strongest of them all is guilt because admitting we have wasted part of our life in pursuit of unworthy just sucks.
Maybe Catholic women are especially prone to sunk cost fallacy because of the Catholic church's strong guilt based culture. This works doubly deep on women who have waited long for God to give them a perfect man. Whatever heavenly standards she (not God) has set her for man, she will not compromise on.
Dalrock recognizes this "season of singleness" culture among Christian women. It's a strange marriage of feminism and modern Christianity.