I agree with the suggestion to see a lawyer.
In the case, as described, it's easy to think the person is just "being difficult", but we should remember that marriage involves legal obligations, one of which can be supporting one's spouse after a divorce, esp. if they have made significant sacrifices to enable one's career. I'm sure lots of people who get divorced wish they could just put their Ex on a plane and ship them to some country where they won't have much legal recourse to the law, etc.
paula1219, this isn't a comment on the specifics of your friend's case, of course, about which I know nothing.