One reason could be that James finally realizes the extent of his bullying. In the original story, James often harassed Snape. In fanfiction, he might come to understand how much pain he caused Snape and feel genuine remorse. Another reason could be that he discovers new information about Snape that makes him see Snape in a different light. For example, he might find out about Snape's love for Lily and how his actions towards Snape affected Lily as well.
In some fanfictions, Snape might see this as an opportunity for his own growth. He might accept the apology gracefully, realizing that holding onto grudges isn't helping him. This could lead to a new relationship between them, where they start to understand and respect each other, or at least tolerate each other's presence.
Snape could initially be skeptical. Given their long - standing enmity, he might not believe that Harry's apology is sincere at first. He might respond with a cold glare or a sarcastic comment, like 'Potter, your apologies are as empty as your head.'
One possible reason could be for misjudging Snape all those years. Harry might have finally realized that Snape was on the good side all along, working as a double agent against Voldemort. This realization could lead to his apology as he understood how much Snape sacrificed and how wrongly he was treated by Harry and others at Hogwarts.
A great fanfiction is 'Cursed Bonds'. Here, Snape's curses on James are not just simple spells but are tied to a deeper, more mystical bond between them. The story unfolds with a series of adventures as they both try to break or understand this bond that the curses have created.
In most cases, it's not ethical. Torture is a cruel act. However, in the context of fanfiction, some might argue it depends on the overall narrative and the 'rules' set within that fictional universe. If it's part of a revenge plot where Snape has been deeply wronged by James in the past, it could be seen as a morally gray area. But generally, torture is not a positive or ethical behavior.
Snape's view of James might not change much at first. He has such deep - seated hatred for James due to their past. But if the fanfiction shows James in a more positive or sympathetic light, he may start to question his long - held beliefs about him, just a little bit.
Snape might curse James out of jealousy. In many fanfictions, Snape is jealous of James' popularity and his relationship with Lily. So, his curses could be a way to get back at James for having what he wants.
Redemption is also a frequent theme. Given Snape's complex character in the original series, fanfictions often explore his path towards redemption, and James sometimes becomes a part of that journey, either as an obstacle or an unexpected ally.
One common theme is redemption. Many fanfictions explore the idea of James or Snape finding redemption through their relationship with each other. Another theme is friendship. Despite their differences in the original story, fanfictions often build a friendship between them. And there's also the theme of discovery, like discovering new aspects of each other's characters.