I don't think it is about 'blame', but maybe more about who bears more responsibility for wanting and prosecuting the act of divorce through the courts. Many articles have pointed out that women are far more likely to file the divorce. Studies show that this only happens when the pair are "married" as opposed to "co-habitating" where the initiator of the breakup is more 50/50. I have written more about this in my own article:

https://franklinwuhoo.medium.com/the-bill-and-melinda-gates-divorce-just-another-in-the-flood-of-divorce-initiated-by-women-b02cd4ceca03

It is still quite the mystery why this is the case. It usually isn't things like finance, cheating, abuse or something obvious. There are a lot of divorces happening to perfectly good husbands which was the topic of another recent medium article that I commented on. Even without things like "cheating", women are increasingly "unhappy" in marriage and see divorce as the "solution". Perhaps this is due to the unrealistic expectations mainstream places upon relationships that they should always be this Disney princess experience and when you find you're just living with your messy roommate, then you have to call it quits? I don't know, I'm just another divorced guy who got blindsided by this behavior.