Hi There,
You sound like me- I just decided one day to that the following Monday would be the day I began divorce proceedings, and I went and did it. I just wanted that leech away from me.
I echo what has been said, above, that you need to be careful. These abusers like to have control, and don’t like you taking the the control back. If you are to leave and inform him of a divorce, please do so in away that ensures your safety.
Xx