How would Aunt Marge's discovery of Harry being a wizard change their relationship in fanfiction?

It could develop into a more tolerable one. Harry might start to see Aunt Marge as a pitiful figure rather than just a mean old woman. Maybe he discovers some things about her past that make him more empathetic.

In fanfiction, if Aunt Marge found out Harry was a wizard, she might have an extreme reaction. She could be terrified and try to distance herself from him immediately. Maybe she would even call the authorities in the Muggle world, not understanding that they can't do anything about wizardry.

Harry's life would be very different. He would no longer be under the Dursleys' roof. Aunt Marge might have different rules. He might have more freedom in some ways, like being able to explore the town more. But he would also have to deal with Aunt Marge's unique personality. He might have a more stable home life, though, with regular meals and a proper bed.

In the fanfiction, they could be forced to work together on a project related to lemons. Maybe there's a local fair that requires everyone to contribute something lemon - themed. Through this shared task, they begin to understand each other better. Harry realizes that Aunt Marge has her own insecurities and Aunt Marge sees that Harry is not the troublemaker she thought he was. For instance, Harry could show his creativity and intelligence during the project, impressing Aunt Marge.

Aunt Marge could be developed by showing her having a moment of self - reflection. She might realize that her harsh treatment of Harry was wrong and start to be more empathetic. For example, she could see Harry's kindness towards animals and that could change her view of him.

At first, Harry might be shocked and feel a bit of pity for Malfoy. This could lead to a temporary truce between them. Instead of their usual animosity, Harry might try to help Malfoy find a way to break the curse. Their relationship could shift from being enemies to reluctant allies.

It could bring them closer as Bill becomes more protective and supportive of Harry.

It could strengthen their relationship. Charlie's newfound knowledge might make him more committed to Harry, leading to a deeper bond of trust.

They could view him as a potential recruit. If Harry has been abused, they might think he could be turned against those who he was supposed to be with, like the good wizards. They would see his abuse as a way to break his loyalty to the side of good and bring him into their dark ranks. For example, they might offer him power and protection from his abusers in exchange for his allegiance.

In some fanfictions, Harry could react in a very calculated way. He might start to plot a way to get back at Aunt Marge without using magic in an obvious way. He'd use his wits and the knowledge he has of her weaknesses. For example, if he knows she's very proud of her dogs, he could find a way to make her look foolish in front of others when it comes to her precious pets. All this while still seething about the insults to his parents.