The discovery of the abuse would likely turn their relationship upside down. Draco may go from being indifferent or even mean to Hermione to being her secret defender. This could lead to a lot of internal conflict for him as he has to reconcile his new - found feelings of protectiveness with his old grudges. Over time, their relationship could evolve into a strange sort of partnership where they rely on each other in ways they never expected.
At first, Hermione would probably be very suspicious of Draco's sudden interest in her situation. But as he proves his sincerity in helping her with the abuse she's facing, their relationship would start to change. Draco would have to break down the walls he's built up against her and she would have to learn to trust him. They could end up having a much deeper connection than just their former rivalry, perhaps even a relationship based on mutual understanding and respect as they both deal with the difficult situation of the abuse.
He might be shocked at first. Draco, despite his past rivalries, could feel a sense of protectiveness. He might initially struggle with his own beliefs and prejudices but then decides to help Hermione in secret. He could use his family's resources to make sure she is safe from further harm.
After Snape discovers the abuse, the relationship undergoes a major transformation. Snape begins to protect Harry from not only the Dursleys but also from any potential threats at Hogwarts. Harry, who has been starved for positive adult attention, starts to trust Snape. Snape, in his own brooding and complex way, starts to care for Harry's well - being. He might even start to teach Harry some advanced magic that he wouldn't have taught him before, seeing Harry's need for strength and self - defense in the context of his abusive home life. This new relationship dynamic is a far cry from their initial animosity.
Their friendship would become deeper. Ron would be more protective and more attuned to Harry's emotions. There would be a new level of trust as Harry has shared such a difficult and personal experience with Ron.
Draco's reaction could be complex. He has been brought up in a certain environment where showing weakness is not acceptable. But when he discovers Harry is abused, he may find it difficult to ignore. He might start by being a bit standoffish as he processes this new information. However, deep down, he might feel a growing empathy for Harry. His actions could range from small gestures of kindness, like leaving a potion that could help heal Harry's wounds secretly, to gradually becoming more open about his concern and trying to get Harry away from the source of abuse. This discovery could be a turning point in their relationship, leading to a deeper understanding and connection between them.
Snape's reaction could be multi - faceted. He might be angry at those who are abusing Draco, but also a bit conflicted because of Draco's family's ties to the Dark side. He could use his position as a teacher to give Draco some extra guidance and support, perhaps in the form of private tutoring sessions where he can also check on Draco's well - being more closely. He may also start to question his own views on the Malfoy family in general.
In the fanfiction, the abuser might be ostracized by the society. People would start to question his motives and actions. His influence in the wizarding world, whether it's in business or politics, would decline rapidly. The abuser might also have to face the wrath of some of the more powerful and just characters in the story. They could use their influence to make sure the abuser is held accountable for his actions.
One popular fanfiction with this plot is 'The Unseen Bond'. In it, Draco's discovery of Harry's abuse leads to a complex relationship development. Another is 'Hidden Scars', where Draco becomes Harry's unexpected protector. There's also 'A New Alliance' which focuses on how the wizarding community reacts to Draco's new - found knowledge about Harry's situation.
One possible reason could be his family's status in the wizarding world. His family might be involved in some dark deeds, and Draco could be a target because of that. Another reason could be related to his own actions or attitudes that have made him enemies.
In many fanfics, Draco's reaction turns into a sense of protectiveness. He feels a need to shield Harry from any further harm, whether it's from the people who abused him in the past or from the judgment of others. For example, in some stories, he'll stand up to those who make snide remarks about Harry's past, using his Slytherin cunning to put them in their place. He also tries to be a source of comfort for Harry, which is a big change from their initially antagonistic relationship.
One common theme is redemption. Draco's discovery can lead to his own redemption as he tries to make up for his past behavior towards Harry. Another is friendship. It shows how a difficult situation can bring two former enemies closer together.