The topic reminds me of this childhood story.
My parents tell me that before the war, the old Italian parish priest in our hometown once gave his observation in a sermon. He said that there are quite a number of men in our town who come to him to confess that they are having affairs. But he said, he doesn't remember any of the local women confessing to him that they are involved in affairs. That got him really puzzled. In his fluent Tagalog, he asked the Sunday congregation something like this: "Who are these men having affairs with- dogs and cats?"
Well times have changed and today it's probably easier for women to admit to their infidelities.