The answer is simple to me: the wife should get a lawyer and file for divorce and half or more of the assets. If the hopefully-soon-to-be ex-husband thinks he c

The answer is simple to me: the wife should get a lawyer and file for divorce and half or more of the assets. If the hopefully-soon-to-be ex-husband thinks he can talk her into a post-nuptial agreement, then he also probably thinks he can talk her down from her share of the money. Given what was described, she needs to aggressively defend herself.