I would like to offer my support also. I agree with what the others have said, that maybe he is worried for your health. It may be, (just a thought) that he feels this situation is changing your relationship somehow. Maybe he is afraid of losing what you two have together. Some people are not so good at expressing thier fears. He may need some time to open up to you about this. I don't know, like I said just a thought. I am sorry for your loss and for what you are going through. If I can be any support please do ask. I hope everything turns out for the best.
Take care,

place