Hmmm, actually I quite liked that article! It's so easy to put yourself at the bottom of the pile with a husband and children, and why should she stay if that is what's expected of her? She can still be a parent away from being married and if he's not supporting her in being independent from him then she has to leave!
Although people might think living as a wag is some kind of dream, often it's claustrophobic and restrictive in so many ways, you are expected to constantly be the trailing spouse - she had a successful career before, it can't have been easy.