I am friends with people my friend hates/broke off with, am I in the wrong?

so my friend and i have been on and off friends for about 10 years, i dont consider her my best friend anymore (she kind of ruined that 9 years ago, when she stole off me and slept with guys i was in a relationship with during high school). we have spoken on and off since then, as our friendship really never recovered since then, i have been really nice and understanding with her throughout us being friends. during the time we would hang out, she would get with a different guy every week, some of them i met and had on my socials, i didn't think anything of it. Since most of them moved on from her and got married, had kids and girlfriends, etc. i dont speak to them, just have them on facebook, as they haven't done anything wrong by me. i dont go out of my way to contact them or hang out with them. since i have a partner and have been with him for 4 years.

my friend has only just realized that i have 2 of her exs on facebook, it wasn't something i generally thought about nor thought about unfriending. since i dont talk to them nor tell them what she's she been up too etc. she ended up blocking me on everything and when i asked did i do something wrong, she acted stupid, the only way i knew was both her and her partner (atm) deleted/blocked me on everything.

then she was annoyed i was also friends with a girl she had a fall out with, all these people haven't done anything wrong by me, since its my friend that dumped them all and got off on bad terms with them. maybe im delusional, but i really feel like I've generally done nothing wrong to her or anyone. since i only talk to the girl she had a falling out with (me and her only talk about crafts). am i in the wrong and what should i do? my mom suggests i should cut this friend off, as she has been dead weight for a while and i should of done it when she stole my stuff. i know i should of, but i didn't have any friends and just kept all this around me for so long

I am friends with people my friend hates/broke off with, am I in the wrong?
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