The [perceived] consequences of ending a marriage seem to provide more of a disincentive to men, so they are more likely to persist in a marriage that they feel they would be unable to leave (and then have to support multiple households, etc.). The fact that women (in the USA) are more than twice as likely to initiate a divorce seems to bear this out.

"Women divorce men more often than the other way around, seems to bear out that men are more dissatisfied in marriage" seems like a stretch to me.

At any rate, it reminds me of the classic physics joke:

> An experimental physicist comes running excitedly to a theorist's office, waving a graph taken off his latest experiment. "Hmmm", says the theorist, "that's exactly where you'd expect to see that peak. Here is the reason." A long logical explanation follows. In the middle of it, the experimentalist says "Wait a minute", studies the chart for a second and says "Oops, this is upside down." He fixes it. "Hmmm," says the theorist, "you'd expect to see a dip in exactly that position. Here is the reason..."

That's an interesting thesis, but it wasn't one that I was putting forward; rather I was saying that the reality of divorce for men tends to be such that they are significantly less likely to seek divorce when their marriage is unhappy compared to women at a similar level of unhappiness.