What you're feeling is perfectly normal. With your illness, can you try to put all your energy into getting better? You're health is compromised, that needs to be addressed first.
You need to take care of YOU, rest, fluids, etc.
Many of us have been where you are, and know exactly the living he!! you're going through. That's why we can help you, if you decide to let us.
Please try to put him out of your mind for now, and get some rest.