a simple chain of cause and effect finds the cause and solution quickly.
women aren't getting enough sex.
women also have this notion that one they're married they can "let themselves go" because they no longer need to attract a mate by staying fit and trim, since they already have one. but guess what? a husband isn't a mindless sex zombie! if he isn't attracted to you, he won't want to have sex. the simple solution: act like your still trying to attract a mate, because *gasp* you are! so stay fit, keep doing your polaties or whatever, don't eat a box of donuts for lunch, and just keep doing what you were doing when we were dating! the wedding is not the end boss, for goodness sakes!
---rant over---