Thanks for the replies, sorry I didn't explain very well but she so far has never been openly toxic like that to dd, in a way I wish she was because I'd then have no hesitation in cutting all contact. If dd called her she'd happily chat to her and act normal, it's me she hates! She gushes over dd but only when it suits her selfish ways to engage, the rest of the time she is either ignoring us with her controlling silent periods, or is playing the victim all woe to is me, nobody loves me apart from my granddaughter. She's 5, to her when Grandma is interested and buys her sweets or invites her for tea she thinks she's the best ever, then gets upset when she goes silent. She absolutely adores my dad, he comes over twice a week to take her to school for me and they have the sweetest bond, she'd be devestated to lose him from her life and so would I. This is how twisted the situation is though, my mother has managed to keep so much of the abuse under the radar, usually on a one to one basis so even my dad isn't aware of how bad it really is and what goes on, I've seriously started to considering conversations as proof. Dh is the only person who knows everything and he's heard for himself some of the phone conversations because I've put speaker phone on.
I also have a brother and want dd to have contact with her cousins, she adores them and is an an only child so I worry when me and dh are gone one day she'll need the only family she'll have left, I can't have any more children and I hate the thought of her losing touch with her cousins. There's no way my brother would be brave enough to go no contact with her as well, and even if he was she has always made him the golden child so he hasn't been treated the way I have, he knows she is controlling and pretty batshit but she has always kept the ea to me as private as possible, he wouldn't understand because he doesn't know the full story.
As well as this, I live 10 mins drive from my parents in a village where everyone knows each other, and every day I bump into acquaintances of my parents, if I went no contact she would play the innocent victim and I would be seen as the crazy or evil daughter, stopping an old lady (well 75) from seeing me and her grandchild. I would bump into my mother at some point 😳 I can't cut contact really without moving away, maybe when my daughter gets to secondary school age in 5 years we could do it. The thought of that is lovely, today I went to the supermarket and felt sick in case I bumped into her, yes I would definitely love to move away, I feel a weight has lifted just realising I could do that in the future!!