She is empowered with an experience
Margot was very young and inexperienced when she got married. You need to find your own way to happiness where you don’t depend on passion, but one does not know it and where to look for at this age. She’s got out and explored. All say ‘the grass is not greener’. But how you can tell if you were not on the other side? Is it the old lady told you? Now Margot knows, it’s just a beginning of her life, she has experience behind. She’ll be alright. And Lou will be alright. No kids, no finances to split. As easy as pie.
In contrast who really needs help is Geraldine. All she has is a choice to believe, but not the power to believe because she doesn’t really know. She drowns anxiety in alcohol.
It’s easy to screw things up and there is a lot of drama in it for a movie. I wish there were more stories how to recover and live happy life.