Hi Leonor,
I'm so sorry you don't have family to help you through this, but many people on this board have found a new "family" right here. Hopefully you will too. I sympathize with you on the compliance issue with Phil. I have some of that with my daughter Heather, who is 28 y/o and fighting tongue cancer.
I just found out today she hasn't been taking her antibiotic or using the fluoride tray. I hate to keep nagging her because she has been so nauseous and weak lately, but I know how important these things are. It makes it so much harder on the caregiver when they have to bully their loved one into doing what's best for them.
I think you definitely should follow Julie and Joanna's advice and check into getting an anti-depressant for both you and your husband.
Hang in there,
Rosemary