I can appreciate this, however let's keep in mind that whether she divorces him or not, she has access to literally TENS OF BILLIONS OF DOLLARS. She could start an entire university or research lab dedicated to whatever her interests are. Being outdated in a field is a little less relevant when you can hire an army of PhDs and grad students to get you back up to speed.

I'm not saying your point isn't valid, because it totally is a real concern that normal people have to wrestle with. I am saying that when one goes from working class to having access to essentially the GDP of a state, it's harder to make the argument that one wasted their life on a marriage that didn't pan out.