Very easily.
I guess I'm not surprised at some of these revelations here. I guess I've lived a sheltered life? 100% of the women I have found myself involved with personally have expected a pretty high level of commitment/exclusivity. Like they would browbeat me if I came home from work late. If I were conducting numerous sexual affairs, clandestine or otherwise, and got caught, I'm sure there wouldn't be an ounce of understanding, let alone a stated policy of permission.
Hooks live the greatest lives.