Well, it could be that Harry Potter makes a big mistake in fanfiction. For instance, he accidentally endangers his mates. This would lead to them feeling angry and rejecting him. Also, differences in beliefs or goals can play a part. If Harry starts to pursue a path that his mates don't agree with, like getting too involved with a certain type of magic that they consider dangerous, they might reject him.
One possible reason could be jealousy. Maybe Harry has some special abilities or has received more attention than his mates, which makes them envious. Another reason might be a misunderstanding. Harry could have been misinterpreted by his mates due to some miscommunication or false rumors.
One possible reason could be a misunderstanding. Maybe his mate misinterprets something Harry does or says. For example, if Harry is often away on dangerous adventures, his mate might think he doesn't care about their relationship and reject him.
Perhaps the father is under the influence of some external force. In fanfiction, it could be that he is being blackmailed or controlled by a dark wizard. As a result, he has to reject Harry against his true feelings. Also, it could be that the father has made some big mistakes in his life and he doesn't want Harry to be associated with him because he thinks it will bring harm to Harry.
Harry could try to find out the root cause of the rejection. He might start investigating if there are any external influences on his mates. He could also reach out to other characters for support, like some of the Hogwarts professors. And he might try to prove himself to his mates, by showing them that he's still the same Harry they used to know deep down.
Harry could try to communicate openly with his mates. He can explain his side of the story and clear up any misunderstandings. This might be difficult at first, but it's a direct approach.
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.
Perhaps there has been a misunderstanding. Maybe Harry did something that was misinterpreted by his mates, leading to their neglect.
Often, 'Harry Potter' rejected fanfiction is due to copyright issues. If the fanfic seems to be too much of a rip - off of the original story, without adding any new or interesting twists, it may be rejected. Some fanfictions might also be rejected because they deviate too much from the characters' personalities as established in the books. For instance, if a fanfic makes Hermione completely out of character by making her overly aggressive for no good reason, it could face rejection.
One reason could be a misinformation campaign. Some malicious wizard or witch might have spread false rumors about Harry, making everyone believe that he has done something terrible like being in league with Voldemort again.
One reason could be a reaction to the Ministry of Magic's mismanagement. In the original story, the Ministry often made mistakes and had corrupt elements. In fanfiction, this could lead to Harry becoming an anarchist as a way to oppose such a flawed system.