Thank you both.
I do exchange pm's with my eldest grand-daughter, but she won't discuss her mother at all. She doesn't live with her, and I know her mother visits her to see the two little girls several times a week, and I expect they have to put up with hours of ranting. The oldest grandson has Asperger's and refuses to be involved in any family problems. He is probably deeply depressed anyway, as in spite of getting his MSc he has been unable to find work and has to live at home. He wants to get a flat and a girl friend, but they live in one of the worst unemployment black spots in Britain. I am not sure if he is still trying to get jobs abroad - he might no want to leave his mother. The 20-year old is just a typical young man, concerned only with his friends, girlfriend, sport and college. The 15 year old girl will pretend to believe anything her mother says because she is frightened of upsetting her.
I fear that any attempt on my part to speak about this to the children will be seen as my trying to alienate them from their mother. She is totally irrational and has twisted my kindest deeds into something malicious.
Her sister has lost patience after so many years of supporting her emotionally, and looking after the children when she was in rehab. She thinks I should challenge DD2 to take all the accounts to a solicitor or an accountant so it can be proved that I lost over £30,0000 whilst trying to help her. I know, though, that no matter how clearly they set it out for her, she would think they were just part of my conspiracy.
I did initially write to my GD explaining the accounts, which I left with her and I don't think it would help me now to write it down. It is not even the accusation of theft which saddens me so much - it is the knowledge that my daughter seems to have felt unloved, (or less loved) all her life and that she has been storing up every mistake I have ever made. I thought that the sacrifices I had made since she had her operation would have convinced her of how much I love her, but she said that it was no more than she was entitled to, because she had done thing for me. Part of her personality disorder is grandiosity- she loves to be Lady Bountiful and it must have been very hard for her to accept so much help from me. She seems to have turned on me once I could be of no further use to her.
I am afraid patience is my only resource.