Huh. they ignored her, well ... ... ... I guess that meeeeeans...
She can finally get rid of her toxic "friends", yayyyy, truth, I did not think this manga could have a good ending after all,
perhaps...
the stabbing is just a misunderstanding and she is not dead and they will actualy make up in hospital and they will all - learn - from their youthful (seishun) mistakes and grow up to be proper adults ... heh.