AITAH for cutting contact with my best friend

So me (f/22) and my friend (f/23), let's call her Laura, know each other for 10 years now. We met in seventh grade and we were best friends back then.
Her mother got cancer and I was the first to find out about it.

Back in middle school, she already treated me like trash, but I made excuses for her since she's been going trough a hard time. I understood her a lot since my father died when I was 10.
But I stopped being a people pleaser back then and we had a fight because of a rude comment she made. She then bullied me for the whole year straight with all her friends. I had no one. This led me to changing classes, but well since the other class was aware of the bullying and kids are cruel, they bullied me too. I had to change school because of that.

Well, her and I had no contact for 2 years, until l found out her mother had died. A friend of mine (m/
22), let's call him John has heard about it and we visited her at her workplace. She and I immediately forget about everything. We met up and we did see us for a few years but not a lot of times. We also had no contact for a long time too.
Then, she and I started having contact again in our early 20‘s.

l also met her sister and we had a great time until I started being friends with her sister. Her sister is very introverted like me and we immediately clicked. Laura did not like it at all when I was hanging out with her sister (we would have invited her too, but she lived 2 hours away, so it was quite difficult). She started many fights during this time, with me and her sister, and I think she was a lil sad and jealous we both spend time tg. So her sister distanced herself from me. But idk if that was the reason tho. We also had no contact, because Laura was mad at me for asking her sister for money (it was a hard time back then, I had a huge fight with my mom and did not live at home so I needed money to survive) and she said that I have enough money because of my „rich stepdad“ and she and her sister have nothing, which her sister did not tell me, otherwise I would have never asked her.

We had no contact for almost 2 years again, until I texted her because I missed her. We met up. During the 2 year break, me and John, who was my best friend for 10 years, cut off contact, because John caught feelings for me but I was dating another man who was also in the same Class as us. Laura has asked about John because she knew him and I were besties. I did not tell her the whole story, just told her we don't have contact anymore.
She started asking me ALL THE TIME why we did not have contact anymore and did not respect my boundary when I told her, I don't wanna talk about it. Well, she texted John and met up with him. even
though she never hang out with him alone, only when we 3 were tg, and that was not the case that often.

So it was surprising, but I did not mind.
after she met up with him, she told me that they talked about me, but she did not wanna tell me what they talked about because it would be unfair towards John. Wtf? Like, you talk about me with someone I was friends with but don't wanna tell me about what. But well, I respected it.

The next time I met her, she only talked about John, all the time. Telling me how funny he is. Telling me how much she likes him, but also gossiping about him. It felt like she wanted me to say anything negative about him which I did not do.

In the meantime, I bought myself a pair of earrings.
She asked me where I bought them. The next day, she send me a photo wearing the EXACT same earrings, telling me she bought them too. At first, I did not think about this. But she did it again.

My bf bought me a mystery squishy (idk if y'all know this, it was a trend on TikTok).
Well, she saw it and said she needs that too.
Next time we hang out, she showed me the new squishy she bought, saying she needed it too. It started getting weird. She also always compares myself to her, saying, she wished she had my hair, my freckles, my body type. I told her that she also has things I don't have and that she is a pretty woman, and she really is, I think she's way prettier than me, so I don't get why she makes all these comments tbh.

Well, she started talking about John again, saying to me he told her everything what happened between us. Telling me he said a lot of things about me. Also, I trusted him with a secret, that I was using drugs to cope with traumatic events. It was a hard time. She told me he told her everything and that they both said that i'm just with my bf because „| can't be alone".

It clicked. I called John, even though we don't have contact anymore, and he told me she's a lying and manipulative woman. He told me, she did not wanna stop asking him about what happened between us, like she did with me. She even texted him a few times only to ask what happened between us and the second time they hang out tg, he told her everything because he was tired of her asking. But he made clear that he does not think about it anymore and that it’s not that deep anymore. She told me otherwise. She told me how emotional he was, how sad and mad he was at me.

He said she played dumb, pretending she did not even know john and me don’t have contact anymore. And he thought she knew about the drug thing, since she started talking about it. Tbh I don’t remember telling her any of it so it is weird. He told me to stay away from her because she‘s really manipulative and wants people to have fights. And that he will stay away from her too.

Also, she always makes comments about how rich I am. After my father died, my mother married my stepdad, who is upper middle class. But I don’t want to talk about his money or the things we have. Because I think it’s unnecessary. She has not a lot of money, well maybe that’s the reason she ALWAYS tells me how good I have it in life, how rich I am. Like everytime she is at our place, she always says this. And she knows that I feel uncomfortable talking about finances etc, she knows that my stepdad has this money, not me, but she just does not stop telling me how rich I am, but in a negative tone like I‘m some spoiled brat. But well, I also think maybe it’s so nice for her because she is not used to the luxury.

Last thing that happened. I send her pics on snapchat, like she does to me. And some of the pics I send are about my boyfriend. My other friends who I send the same pics don’t mind. Yesterday, she was mad af at me, for sending a snap of me where I say „I’m gonna get my body hair lasared by my bf‘s mom“. She immediately said „can u stop sending pics about your boyfriend because he gets on my nerves, it’s your boyfriend not mine and I am not a fan of him so stop sending pics of him“ which was RUDE af. Like if you’re annoyed just tell me in a nice way but wtf?

She then apologised right after, saying she is on her period and was just mad at my bf for whatever reason. Also, I don’t get why she is not a fan of him, he teats me like a princess and I never say one bad thing about him.

So yeah, that was it. I’m really hurt because I start to realize she has big problems. I don’t know if they come from jealousy, but it is hard to deal with her. I don’t know if I should just distance myself from her or tell her to cut contact because I don’t wanna be with someone who is like that.. so I want to cut off contact with her but I’m not sure since she does not have anyone.