CMOT you have had a dreadful two years. Is the grieving a form of distancing. If you accept that you have lost your mother and your relationship with your father is very changed, the next crisis will be less difficult. There is no going back or curing. Dementia is a terminal illness, and to be absolutely callous, once your mother's brain has gone she is largely gone. Yourrole is now as advocate for your mother and manager of her care. Your poor dad is presumably so tired, emotionally and physically, that he has nothing to give you.
I went through a period about 18 months ago where I did not want to see my mother but felt I was grieving for the person she was. It's now easier. The care side is pretty sorted, so like Bob I don't need to be as involved in the day to day stuff. And I don't really see her as my mother any more, but rather as a spirited toddler who I have responsibility and a level of affection for. So pleasure comes from watching her watch Punch and Judy on the beach. (She liked the bit where the crocodile eats the baby.) Or from the brightly coloured ornament that I knew would appeal to her magpie taste.
Physically she is well so I assume I have up to another decade of this. If she were to die tomorrow there would be a void, but this would be more than balanced by relief that she (and I) had avoided the end stage dementia. I am now not bothered by the repetition, instead using it to assess her level of well - being, or by the verbal aggression which I found so difficult in the early stages. She has lost her power to hurt me emotionally.
Like twentyten I am starting to focus on me. Do has just over a year of school to go, and ds is already at University. After all those busy caring years I too am reaching out to old friends and making new ones. It feels good.
Distance, honestly, is good. I will make sure she is looked after. I visit reasonably regularly, though by buying some buy - to - let near her and by renting rather than selling her property, I have ensured that visiting my mother is often not the focus of a 250 mile round trip, and so have a chance to see her socially without having to drag her out for some sort of appointment. And I no longer worry. She has told her priest she would like to die. Both he and I understand.