My best friend

I started of in another friend group of some nice girls, sometimes they'd leave me out so I started hanging out with this girl. She was super nice at the start but she often draws on my laptop and she's an only child, so there's that as well. She constantly has beef with everyone and is kind of proud of that?? I'm not kidding, if I mention a person she usually has a reason why she 'hates' them. She also screams a lot just randomly or says stuff like 'oh my god, you like __', even though I don't. She also does this thing like if I don't follow her or do what she says I like '___' even though I don't. It's honestly quite embarrassing.
She also sometimes hits me on the head but I can't tell if she's joking or not. Also, is it normal to frequently swear at your friends and call them profanities, because she does that. As a student myself, I don't swear, but she keeps asking me to. I don't know, honestly.
She also insists I just sit at her table, with just her, even though sometimes I want to sit with other friends. But I'm quite literally her only friend and she refuses to branch out. I can't vibe with her anymore and she gets on my nerves so often. Kids at my school say stuff like 'chat i'm cooked', stuff like that, and infront of the 'popular' kids, she constantly uses that language, like, what the hell?
I'm also generally nice as a person, I try to include others and make them feel comfortable, but I'm wondering if she takes advantage of that. What should I do?

I started of in another friend group of some nice girls, sometimes they'd leave me out so I started hanging out with this girl. She was super nice at the start but she often draws on my laptop and she's an only child, so there's that as well. She constantly has beef with everyone and is kind of proud of that?? I'm not kidding, if I mention a person she usually has a reason why she 'hates' them. She also screams a lot just randomly or says stuff like 'oh my god, you like __', even though I don't. She also does this thing like if I don't follow her or do what she says I like '___' even though I don't. It's honestly quite embarrassing.
She also sometimes hits me on the head but I can't tell if she's joking or not. Also, is it normal to frequently swear at your friends and call them profanities, because she does that. As a student myself, I don't swear, but she keeps asking me to. I don't know, honestly.
She also insists I just sit at her table, with just her, even though sometimes I want to sit with other friends. But I'm quite literally her only friend and she refuses to branch out. I can't vibe with her anymore and she gets on my nerves so often. Kids at my school say stuff like 'chat i'm cooked', stuff like that, and infront of the 'popular' kids, she constantly uses that language, like, what the hell?
I'm also generally nice as a person, I try to include others and make them feel comfortable, but I'm wondering if she takes advantage of that. What should I do?