How do I handle a toxic pick me classmate who won’t respect my boundaries?

hey guys i just need to vent about this girl in my class lets call her c we sit next to each other at school but honestly her behavior is getting so exhausting and toxic to give you some context c is the ultimate definition of a pick me girl especially around guys she always tries to be the center of attention recently a younger students motorbike broke down so he pushed it to her house and asked to borrow her wifi ever since then every single time she sees this younger guy in front of other boys at school she keeps loudly repeating the same things like did you return my wifi yet or is your bike fixed yet why is it taking so long its just so cringe and repetitive because she has nothing else going on in her life so she uses this one thing to brag and look close to guys i got so bored of her repeating the same story for the 100th time that i just walked away from the conversation well she felt completely humiliated in front of the guys because i walked away so she went on her instagram notes and posted can't stand seeing other people happy always ruining the vibe did you have childhood trauma or something lol honestly its so funny because she is projecting her own insecurities she also acts completely entitled gets mad super easily over nothing to control me even if im genuinely sick and need to take a day or two off from school she completely loses it and won't let me she literally tells me stuff like just take some pills or if my allergies flare up and my eye gets swollen she just says just use eye drops and unfortunately she knows a deeply personal secret about my ex so she subtly uses that as leverage to make me feel like im beneath her i used to be hot tempered when i was younger but I've worked so hard to change my behavior and become a gentler softer person but dealing with her makes me feel like im losing has anyone else dealt with a friend like this how do i deal with her?

How do I handle a toxic pick me classmate who won’t respect my boundaries?
Post Opinion