is my friend being an asshole or am i overreacting (serious)

for context, my friend is haven. she's one of those anime-buff-hot-men obsessed girls and she's part of the weird kid club we have at our school. she brings me monster energy and even said she was gonna buy me a zim plush?? not turning that down

anyway, me, haven, and my other friend share an art period together. we chit-chat, talk about having sleepovers and stuff, scrolling through amazon and google images (since our chromebooks block literally everything, google included, so we gotta be careful). at one point, she gets disappointed in her art, and me and my friend try and cheer her up. she ends up snapping at my other friend, sitting next to me, saying that "she'll never be good enough and you're lying to my face. i can tell."

im really confused at this point, and my friend turns to me and whispers, "do you think i should uninvite haven to my birthday party? she's been an asshole lately" and i told her it was up to her to make such a decision. she tries to apologize a few minutes later, saying it was "instincts"? i dont know if this even is a thing??

anyway, she'll sit with us in the mornings (we stay in the gym before being transferred to homeroom) and she turns over to my closest friend, pluto, and speaks with her immediately after she sits down. she doesn't bat an eye over to me at all. it feels like shes trying to take my friend from me, which i highly doubt, but i can't shake that feeling off :/

i know she isn't trying to cause any harm, but heres the list of everything else she's done to be a considerable "asshole"

- making unwanted sexual comments about me and my friend (when we've asked her to stop, and she says she "can't help it")

- stirs drama around our giant weird kid friend group, making fun of other weird kids, and sometimes blaming us of doing things we've never done

- gets jealous if im talking to my other friends and tries to convince me she's my only "real friend"

- leaves me out of conversation during my art period and barely acknowledges me during their amazon-fiesta feud

- when i talk about my father, who died in a motorcycle crash (he was on the motorcycle), she has the audacity to talk about motorcycle crashes she sees on youtube shorts. that's BEYOND disrespectful.