A trust breaker?
At the instant of marriage, the entire legal system swings over and stands behind the female. The child support, the alimony, the splitting of property, the domestic violence industry, etc.
The woman risks nearly nothing legally. The fact that he is willing to MARRY her is an enormous demonstration of trust. He is putting his head on an legal chopping block, and handing her an axe.
Is it so difficult for a woman to honor that clear demonstration with HER own small serving of risk? That if she files for divorce, she gets nothing?
I have a female relative who was married 35 years, the husband cheated, did several other bad things, and she got next too nothing. Our system often rewards the most ruthless person.