I feel so sad about what you are going through.

Remember, one week for him to disappear. I hope you follow through on this, no matter how difficut it will be on you. As you know, you need to do whatever you need to do to remove yourself from this toxic environment. If he is still there, place all of his stuff outside and change the locks on the doors. I think this is called “tough love”. Maybe give him $100 to get along until he finds a solution for himself. You can always give him a list of resources for people in real financial need, such as soup kitchens and shelters. I am sure there are emergency services from the state that he can apply for.

All of this is just my opinion. But then, what do I know about situations like yours?