You do not need that kind of toxicity in your life right now. Like others have said - let him do for himself. Or maybe - think about this - he is trying to drive you away so he does not have to face the inevitable.
Plant flowers for yourself. Make your life and surroundings nice for you.
And at the risk of being pushy - re-think the port. It’s a good way to get in better pain meds and faster. I hope you can get some relief from the pain soon. Better living thru chemistry, I say!
And like ZuZu - wishing you strength and AO! I wish I lived closer _ I would bring you Baler kitten to make you laugh. He’s going thru a silly phase - today he chased his tail, swatting at it over and over til he fell down. Then he jumped up and ran down the stairs a billion miles per hour and crashed headfirst into the door. Ninny.