I read an article a little while ago along the same lines. Laws were changed so that women would be entitled to half their husband's pension if they divorced, so that's what a lot of them were doing. Getting out when they could. The article focused on a few men's groups which were trying to train married men into being good husbands so their wives wouldn't leave them. Apparently saying "I love you" while sober is a major milestone, which none of the men interviewed had reached.