If you have experience and contacts, it is easier to get back. At the end of the day, while your choices are limited and conditioned, temporary choose a lower paying job to divorce and later getting back to it, is an option you also have.

In the same way, she choosing lower paying jobs, messes with her retirement, health insurance, cover bills, etc. After all, the only reason she has those things now is that you cover them. But if you stop, she won't have any of that.

Also, if all income comes from your job, you can limit her spending. I'm not saying it is an easy choice, but many times we have options we refuse to consider. Also, there are postnups available. Maybe you can negotiate one.