The other part you need to consider are the long term consequences of having lived with someone as horrendous as this.
I lived with a similar character, not as bad as yours, but bad enough.
4 years after leaving him for his miserliness, I still find myself becoming a bit agitated when the bill comes whilst out with friends.
I can’t help but have it in the back of my mind that there will be some problem.
I have become more distrusting and suspicious of new people.
This has had the knock on impact of others not wanting to trust me similarly.
I am having to retrain myself to become who I was before meeting that guy.
He has damaged me in some way and I’m still healing.
The longer you stay, the worse it will be for you.
Do not negotiate, do not warn, just get out. Do not tell him until you’ve got a place to go lined up and got your important documents and valuables out of your current house (I won’t call it a home).
These kinds of people can become mean, not only with money, vindictively mean. The time of departure and rejection can bring out a Mr Hyde you hadn’t encountered before. Save yourself these headaches. I didn’t deserve a chat about this until the time you’re all set to go. It’s not worth the heartache of the emotional and mental number he will try to do on you.
After all, he will be loosing the goose that lays the golden eggs.
Far from you being tight, you have been brainwashed and hoodwinked into subsidising his lifestyle.
Do not give him your address. Redirect all your mail before you move.