For starters, DON'T REPEAT YOUR BOUNDARIES. That only WEAKENS them, not strengthens them. If he breaks them, follow thru on whatever your stated consequences were.
Also, the book "Co-Dependent No More" is excellent. It may help you.
If you are reliant upon him for income, you need to think the exposure at work thing thru very carefully. You might be killing your own golden goose there.
