Her responsibility is to make it CLEAR to him that everything she is doing is for the sake of their marriage and family.
How does doing things against my H's wishes acting on behalf of the M and the family? How is saying 'f you, I'm doing what I want' for the benefit of the family? That's H talking by the way and he is the king of turning things around regarding items as small as porcelain handles on the faucets.
I cannot prove to H that I am committed if H wants to fight me on it. So far, he has chosen to fight me on it and think of ways that I have demonstrated that in fact I am NOT committed.
"Happiness is a butterfly, which, when pursued, is always just beyond your grasp, but which, if you will sit down quietly, may alight upon you."