Do I just ignore her?

There’s been lots of drama in my family between my oldest sister whose mentally ill and especially my mom.

They never got along but my oldest sister has a 15 year old son he got sick of it and their relationship has been rocky.

She’s got no job, has no home. She stays at friends places.

Anyways she sends vile messages, she was telling my nephew how my mom never graduated high school or got a GED.

My mom was about to graduate but decided to go into work instead. She was about to get her GED.

Anyways, she’s telling lies about everyone in the family. And it’s bothering me. I don’t talk to her nor have been close to her, I don’t associate myself with her anymore. She’s such a shitty person.

A lot of people know she’s mentally ill, she’s got 3 degrees and can’t use any of it due to stealing charges and now has a criminal mischief charge.

Do I just ignore her? I don't know what she’s saying about me, she can only say so much cause I wasn’t really close to her.

Who treats their mom this way? Has anyone gone through something similar?
Do I just ignore her?
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