You need to find help for your depression first. You can't be good for other people if you are not good for yourself. I get the relationship (your marriage) is not a positive influence on your depression. In any relationship, the other person should not feel that when he gets money he will leave me. That's a horrible cross to bear. In addition you have an unsupportive and insensitive mate and no time to yourself. This would depress anyone. You have to find a sympathetic person who cares about you. Call your children every day if you have to. They would be glad to support you. Withdraw yourself as much as possible from this partner. Clean when you need to - not because you are or are not depressed. Find a professional immediately. You are not taking care of yourself and that will make your mood worse. I think you are not reaching out which is not healthy.
Seek any care you can! Any is better than none. Reconsider this relationship. Stay close to your children