This is going to be a long one but need advice 😬

Okay so my partner has a younger sister who is 17 and my partner is currently 21 and his younger sister really does not like me which causes a barrier between me and my partner’s mum as she is the only girl the partners mum always sides with the younger sister.When I go to visit my partners mum his sister will make comments under her breath like “or go home” she laughs at random times and stares at me makes me feel unwanted and yes it works.

This never really bothered me as I got used to it however I am now 32 weeks pregnant with my partners mum‘s grandson and his younger sister is making it extremely hard for me and his mum to get on I don’t know what it’s like when the baby is going to be here my partners mum is really excited for the baby but she’s not allowed to speak about the baby at home where my partners younger sister is as my partner is younger sister gets very angry loses her temper and doesn’t like it, so when my partners mum wants to speak about the baby she will come round and visit me and my partner at our home

I have literally run out of options I have tried being nice and it gets me absolutely nowhere and I just end up looking like an idiot in front of everyone I’m so upset by this I know it doesn’t sound much but literally I could sit and write all day about this. I just want my son to have a nanna and be proud rather than having a nanna on the sly.