Edit: People downvote me, but this just screams neurodivergence. I say this as someone who is significantly neurodivergent. Just because they're easily upset by things that don't upset others does not mean they are even remotely dangerous lmao. That's an insane conclusion to jump to.
Down votes are because its far more likely the cause was jealousy than autism.
Also you seem to have sympathy for the person who's acting like an asshole in this story. Even if they are autistic, its still shitty and she isnt required to put up with it.