These are just my thoughts:
I would not resign. Gather all of the information you can - evaluations, correspondence, etc. while you still work for them and have access to it. Send it to your home address and also print it out. Document, document, document in case you need it.
When you are out of work file for unemployment and if it is denied you have a right to appeal.
Unemployment will buy you some time to find something else.
You have not done ANYTHING wrong. You are a victim of the economy.
I have learned to expect NOTHING from my ex. I can't count on him for anything. I am going out of town in a few days and even though he has offered to check on our animals I am having a girl from the vet office come by. I would rather pay her than count on him to be sober.
If I give my XAH any information it usually is used against me. That happened to you.
Your alcoholic is an ass.