The appropriateness of 'abusive jack and maddy fanfiction' is a complex matter. On one hand, it might be appropriate if it serves as a cautionary tale about the perils of an abusive relationship. It could help readers understand the feelings of the victim and the wrongness of the abuser's actions. On the other hand, if it's overly graphic or promotes abuse as something normal or acceptable, then it's highly inappropriate. It's important to consider the target audience and the overall message the fanfiction is trying to convey.
Euphoria isn't a true story. It's a creation of the writers' imagination, although it may touch on common issues and emotions that many people can relate to in real life.
Euphoria visual novel is a kind of digital storytelling medium. It combines text, images, and sometimes sound to create an immersive experience for the reader. The themes and content can vary greatly, but they aim to draw the audience into a fictional world.