And that's why sometimes they fail. For me what I would put up with changed as I grew as a Woman - spiritually, emotionally... I couldn't accept the treatment I was getting. I couldn't accept certain ways of living/being in Society. So yes whilst it's true that marriage has to be worked on it is also true that sometimes as we grow as people certain behaviors or ways of being just cannot be accepted as okay anymore...

It's a tough one with no easy answer.