Hi MS,
I know there's lots going on with you and I'm picking only one thing to respond to, but I had a similar incident with my father and maybe my info can help you sort out that one thing.
And when an adult says to you, don’t tell, but you know what he’s doing is bad for him, do you let it go because he’s an adult and in charge of his own life? He’s told me on more than one occasion he wants to be left alone about his eating choices. So to make an issue would be crossing a boundary? Dad wants ice cream so go get ice cream, even tho I don’t want to? Maybe he’s crossing a boundary with me by asking this of me. I’m not sure.
My father's bad thing that he involved me with was cigarettes. One of the many times he tried to quit, before he actually did, he had let himself almost run out. Then he called me frantically and said he was afraid that when he did run out of cigarettes that he might "freak out". So, would I go get him just one pack and bring it out and he'd pay me when I got there. And I agreed. Now, I had bought him cigarettes many times in the past even knowing how bad they were for him (he had emphysema from about the age of 40 onwards--that is eventually what killed him). But this time I became angry about it. I got in the car and steamed about it the whole time I was driving, buying the cigarettes, and then driving out to his place to deliver them. And in that time I realized I was angry about how he manipulated me into getting the pack for him. He might freak out, he didn't know what would happen, what he would do, only I could save him from this terrible whatever. He said what he thought he had to say in order to get me to do what he required of me.
So, when I got there, I had my response all ready. I had my limit, my boundary set, and I was ready, finally, to lay it on the line and mean it. I told him I would never buy him another pack of cigarettes again, for obvious reasons, and it was his responsibility from now on to get them for himself or not. I hadn't liked being placed in that position by him and would never allow that again. To my surprise, he accepted my boundary and respected it from that moment forward. Of course, he was not N. Nor even N supply any longer by that point in life. Maybe your Dad would respect whatever boundary you want to establish, maybe it would be messy. But I'm thinking that this ice cream situation is indeed a boundary violation. He is a grown-up and free to eat poorly if he so chooses. That may actually be a part of his particular journey through this life. But you are also free not to cooperate with him if you so choose.
I hope this helps in some way with part of what's happening these days. It's a lot right now. Still in my prayers, MS.
Pennyplant