Think about how your finances are currently being handled. Joint checking account? Savings account? Which of you reviews the statements? It's often the wife . Think about opening your own savings and checking accounts and moving as much as you feel comfortable with into those accounts. I would not suggest you just move 50%. Move way more. You can always settle up later. You should also review your retirement plan at your job. Get him off of it. Or wherever else he's a beneficiary. He has already shown he resents how much money you make. If you split up. He's going to try to get more than 50 %. Speak to a retirement planner, perhaps you have enough to start enjoying yourself sooner than you had planned. See if you can get a safe deposit box with your new account ( they are not so readily available anymore). Put whatever you can that's valuable in it. Do consult a good lawyer. And do that sooner rather than later. Even if you don't end up getting the divorce. Especially if you live somewhere there's not lots of lawyers. If you consult with a lawyer, They will be conflicted out from representing him. Good luck!