If you truly thought she would divorce you, then i'd play the long-game and start planning. Give in a little and then just wait for the next demand. Record everything. Try to have arguments over text, so you have a record. Then you can use this in divorce proceedings as leverage. The point is not to encourage the divorce, but if she's determined to do so, then you need to protect your house/assets-- not selfishly, but for your children. Contact a lawyer now, and get his advice. Women today have an incentive to divorce. If she has already mentioned it, then your marriage is on shaky ground. And it's her fault. Pray that it doesn't happen, but plan for the worst.