She's been doing it since DD was born 17 months ago. I've asked her not to, she says it's not on purpose and then carries on. I find it very upsetting and hurtful. Tbh I do think she's doing it on purpose as even when I've brought it up she's carried on. She's always undermining me, trying to grab DD when she's upset so this is just the icing on the cake. I feel like she's stealing my identity How the hell do I get her to stop? If I tell her to as it's hurting me she'll turn it round on me and make me feel silly, then carry on. She claims it's because she's not used to being a grandmother yet but it's been 17 months. Plus why would you call yourself Mummy to your DGD due to that?
Background is, we've had a very rocky relationship for years. She's quite selfish and narcissistic and a bit strange tbh. I can't stand her most of the time but I wanted DD to have a relationship with her nan. Now I wonder whether it's worth it. She's not that keen on me, she said she went off my sister and I when we grew up and became able to have our own opinions. She's always belittling me and making me feel like shit.
Sorry if I've missed any details out, it's hard to remember everything. Any advice would be appreciated.