[ladyjane]

women initiate divorce twice as often as men.

The person who initiates the divorce isn't necessarily the one who causes the divorce. The data are clear, men are more likely to fool around.

[Reeses]

men are more likely to fool around

Or are more likely to get caught. Doesn't it take somewhere near two to tango?

[Hugin]

You assume that infidelity is the main cause of divorce. Actually money problems are the #1 cause. As for cheating, older men are more likely to cheat than older women, but among younger people it’s roughly equal. And a man (or woman) cheating may be a symptom of other problems as much as a cause.