MaryMary, you said it. I'm sorry for all you're going through.
Somehow I really believe your conversations with your son will only benefit him and deepen the bond you share too. That will always remain. I'm glad you have each other even though the dynamic is parent and son, it lends strength and support when it's a close loved one helping with caregiving or even just being there if not really able to do much themselves.
I've kept you all in mind and heart, keeping good energy thoughts if only to help you keep going.
I know you're helping a lot, just in case you need some confirmation of that. Your posts reminded me of the stark feeling of difference or shock a bit between being "in it" versus someone else hearing about us being in it. As you said, it's one foot in front of the other, every day sometimes being different and doing the best you can.
I think you're doing wonderfully and a great help to your ex and your son. Want to be sure you hear that today. Keeping good energy thoughts for you.
Carlyn