Cheesecake,
Welcome to SR. As far as your question you are protecting you and your children. You need money for food, a place to live, etc. I would advise you to put other security measures on your account. He could get checks or your ATM card and if he knows your passcode take money out. You can have it that anyone who tries to cash a check made out to cash must show ID and you MUST be called. Use a passcode on the account to get any information on it.
I learned the hard way, my addict stole my checks, and ATM card and took a lot of money from me.
Good luck