I’m sorry, but I really don’t understand how getting enough time alone to masturbate is specifically a problem for women. It is a problem for anyone in living together relationship. I’m not arguing the logic and the sense of the argument, I just don’t agree that this is a problem only for women. Sure, guys can get off quicker (make that some guys, often younger guys only), but men are also prone to becoming withdrawn, not being satisfied (orgasm does not equal satisfaction) and to having unaccepting partners.
The bottom line is that everyone needs some alone time now and again. Everyone needs it as a release, as a means to ultimate satisfaction.