Maybe it's Ron. Suppose Ron gets jealous of Harry's fame and power and, in a moment of weakness and envy, decides to abandon Harry to die. This would create a lot of drama as Ron and Harry have been friends for a long time, and such a betrayal would be a huge shock to the story's readers.
Another possibility could be a new character introduced in the fanfiction. This character could be a love interest of Harry's who, for some dark and convoluted reason, perhaps related to their own family's secrets or a hidden agenda, abandons Harry when he is in a vulnerable state.
One possible plot could be that Harry's mate is influenced by dark forces. Maybe they are threatened or corrupted, which leads them to abandon Harry. Harry then has to find his own way to survive. He might discover new powers or allies in the process, and in the end, seek revenge on those who made his mate turn against him.
It could be the Death Eaters. Even if they are on the 'bad side', they might see an opportunity to disrupt Harry's life and weaken him. By forcing him to reject his mate, they can create emotional turmoil for Harry, which would make him less focused on fighting against them.
In Harry Potter fanfiction, Hermione could potentially be Fenrir's mate in some very creative and out - of - the - box interpretations. Some fanfic writers might see her as a character who could be forced into an unexpected relationship with Fenrir, perhaps as part of a dark plot twist where Fenrir captures her and they develop a strange, warped relationship over time.
One possible reason could be some sort of external threat. Maybe there's a dark force that wants to use his mate against him, so to protect her, he's forced to reject her. For example, if there are dark wizards who plan to capture his mate and use her as a bait to get to Harry, he might think rejecting her would keep her out of danger.
Luna could also be a possible dominant mate. She has a very unique view of the world and her calm confidence could translate into a dominant role. For example, she could guide Harry in ways that are different from the norm in the wizarding world, which would make for an interesting dynamic in a fanfiction.
One reason could be that his mate has different life goals. Maybe she is more focused on her own magical career and doesn't see a relationship with Harry fitting into that at the moment. Another possibility is that there are misunderstandings between them. For example, Harry might have been too involved in some dangerous adventures and his mate thought he didn't value their relationship enough. Also, it could be due to external pressures, like her family or friends not approving of Harry for some reason.
It could also be due to differences in their personalities or goals. If Harry is very adventurous and his mate is more cautious, they might not see eye - to - eye on certain important matters. And this fundamental difference could lead to the mate rejecting Harry.
Yes, there are quite a few fanfictions with the concept of Harry and Draco being mates. In the world of fanfiction, writers often explore different relationship dynamics between characters that deviate from the original canon. This can lead to some really interesting stories where Harry and Draco form an unexpected bond, whether it's a friendship, a more complex relationship, or a new kind of magical connection.
Another possibility could be a new character created specifically for the fanfiction. This new character might have unique abilities or a personality that attracts Edward in ways Bella didn't. For example, she could be a vampire from a different coven with a very different view on life and love, which makes Edward question his feelings for Bella and consider this new character as a potential mate.
It could be a new character entirely. Maybe a hybrid of some sort, half - vampire and half - werewolf, which would be a very unique and interesting choice for her true mate. This would bring a whole new set of dynamics to the story as Bella has only been involved with either vampires or werewolves before.