In fanfiction, Snape may treat Harry differently due to the power Harry possesses. Harry is a powerful wizard, and Snape might be afraid of what Harry could become. This fear could manifest as different treatment. Maybe Snape is trying to mold Harry in a certain way so that he doesn't go down a dark path, or perhaps he's just jealous of Harry's natural talent and tries to put him down as a result.
In some fanfictions, Harry might defend Snape because he comes to understand Snape's complex past. Snape was in love with Harry's mother, Lily, and his actions, though often harsh towards Harry, were sometimes motivated by his love for her and his role as a double agent against Voldemort. Harry, being a character who grows in understanding, could defend Snape once he learns these truths.
Snape terrifies Harry in fanfiction perhaps because of his strict and often cold demeanor. In the original series, Snape was harsh towards Harry, always seemingly looking for reasons to deduct points or give him detention. In fanfiction, this could be exaggerated. His dark appearance, with his long black robes and sallow complexion, also adds to the menacing aura.
Well, in these fanfictions, Snape often becomes more openly affectionate towards Harry. Instead of hiding his feelings behind a mask of coldness, he gradually lets his guard down. For example, he might start giving Harry small gifts like a special quill or a book on advanced magic that was once important to him.
Harry becomes more empathetic. Usually, he and Snape have a rocky relationship. But when he saves Snape, he starts to see Snape in a new light. He realizes that Snape is more complex than he thought, which makes him more understanding of others' hidden motives and pain.
One reason could be that Harry Potter is the main character of the series. His story arc is central, and Snape is often a complex figure in relation to Harry. Writers might be more interested in exploring how Harry's actions and growth impact Snape's character and vice versa. Also, Harry has a broader range of relationships within the wizarding world that can be intertwined with Snape's story in fanfiction.
Snape's character development could take a very different turn. He may start to value life more, not just Harry's but also those around him. In the original, his focus was mainly on his own pain and his loyalty to Dumbledore. But going back in time, he realizes that every action he takes can have a huge impact on the future. This could lead to him becoming a more empathetic character. He might also become more of a hero in the eyes of others, which is a big change from his somewhat villainous reputation in the original story. He could start to see himself in a new light and strive to be a better person not just for Harry's sake but for the sake of the entire wizarding world.
Perhaps it's related to Harry's association with his father, James Potter. Snape had a long - standing grudge against James, and seeing Harry might bring back those bitter memories. So, whenever Harry does something that reminds Snape of James, like being overly confident or a bit of a troublemaker, he yells at him.
In some fanfics, Snape might hurt Harry out of his long - held grudges. Snape was in love with Harry's mother, Lily, and Harry being a reminder of James, who bullied Snape in school, could trigger his negative emotions. Also, Snape's loyalty to Voldemort in the earlier days in some fan - created scenarios might lead him to target Harry, who was seen as a threat to Voldemort's plans.
In some fanfictions, it could be that the author has rewritten Snape's character in a more approachable way. Maybe Snape shows a side of himself that is protective towards Harry, like secretly guiding him in his magic studies without the usual harshness, which makes Harry feel safe.
In some fanfictions, Harry might avoid Snape because of the pre - existing animosity between them in the original story. Harry has long seen Snape as a figure of authority who is out to get him, so in fan - created scenarios, that fear or dislike could be intensified, leading him to avoid Snape.