To not like my boyfriend's sister?

[Torrelar]

We have a bit of a weird relationship. We met at a pub when I first moved here from Australia. We lived and worked at this pub and when she wasn't happy she'd make my life hell. I would say the smallest thing and she would make it into this massive deal and twist my words. I started dating her brother and we now have a baby together. Anyway
She is the most selfish person I know. She takes drugs often, she is just a horrible person. She lies to get what she wants and she's a very jealous person. She says horrible things to my boyfriend such as he's a crap father and can't provide for us (so not true! She's just so spiteful)
AIBU to not have her on Fb? Just because she is my OH's sister I don't have to like her do I? Don't get me wrong I will be amicable if we are ever in the same room but other than that I don't want anything to do with her. She noticed I took her off FB so she sent my OH a snapchat saying "what's wrong with your stupid girlfriend"
Just really grinds my gears. Sorry for the rant.

I’d ignore her, block her on fb so she can’t find you

What does he do/say/think?

It's facebook who cares? Honestly it all sounds like you are being drawn into petty, immature squabling. Have as little contact as possible and get on with being a grown up and leave her to it.

Should maybe mention that her own sister doesn't have her as a friend. Her family don't have a nice word to say about her. She's just drama! I don't think it's unfair to not have her on fb. She just makes a big deal over nothing. Why should I let her in my life when she never talks to me or even asks how her nephew is! Grr

MrsTerryPratchett he doesn't mind. He knows how she is and she'll always be like that. He just leaves it be.

Tell your OH not to pass on what she says.