It could cause some tension. Some of his friends might think Harry is being too reckless or getting involved in something that's not typical Gryffindor behavior. However, if Harry can show that the snake has a positive purpose, like helping them solve a mystery or protect Hogwarts, his friends will probably accept it. For example, the snake could sense the presence of dark magic, and Harry uses this ability to keep his friends safe.
This event could also strengthen his relationships. If Harry is able to train the snake to do useful things, like find lost objects or deliver messages secretly, his friends might be impressed. It could also show a different side of Harry to his friends, a more independent and curious side. This new side could lead to deeper conversations and a closer bond between them as they all grow and learn together at Hogwarts.
His friends might be a bit worried at first. Hermione, for sure, would be concerned about the potential danger of having a snake around. Ron might be a bit scared too, considering his fear of spiders and general uneasiness around things that seem a bit dark. But if the snake turns out to be helpful, they might come around.
Long - term, if his rebellion is for a just cause, some friends might come to understand and support him fully. However, in the beginning, it would likely be a rocky road. His relationships would be tested as he challenges the very institution that has been a big part of their lives. There could be a lot of arguments and debates among them, with emotions running high as they all try to figure out where they stand in relation to Harry's rebellion.
His friends might be initially terrified. Hermione, for example, would be both scared and immediately start researching how to reverse it. Ron would probably be more shocked and not know how to react at first. Their friendship would be tested as they try to figure out what to do. They might have to keep Harry's transformation a secret from other students to protect him from being hunted or experimented on.
When Draco turns Harry into a vampire, it throws his friendships into chaos. His friends are used to the regular Harry, the one who battles Voldemort and plays Quidditch. Now, he has different needs and behaviors. Some friends may distance themselves out of fear. But others, like Neville, might be curious and try to help him adjust. His relationship with Ginny would also be tested as he has to deal with his new vampire nature and how it affects their relationship.
Losing his arm would be a huge blow to Harry. His friends' reactions would be mixed. Hermione would be practical, trying to find magical solutions or aids for Harry. Ron would be more emotional, showing his support through his presence. Some of his other friends might be a bit afraid or unsure at first. But over time, they would all come to accept Harry as he is now and their relationships would be based on a new level of understanding and support.
Hermione would probably be very interested in studying how the void - controlling ability works. She'd want to understand the magic behind it, and this could lead to a lot of discussions between her and Harry. Their relationship could become even closer as they explore this new aspect of magic together. Also, his other friends in Dumbledore's Army might look up to him more and be more eager to follow his lead in their fight against the dark forces.
His relationship with the teachers might become more complex. Some teachers might respect his newfound authority over the wards, while others might be wary. For example, Snape might be suspicious of Harry's intentions.
It might make his friends a bit wary at first. Since this is an unusual and powerful thing to happen, they could be concerned about how it's changing Harry. But as they see that Harry is still the same person deep down, they would gradually accept it.
His friends would be both amazed and a bit envious. Hermione might be very interested in studying this new aspect of magic related to his ability. Ron, on the other hand, would probably be in awe and might ask Harry to use his ability to find some cool magical animals to play with. It could also make them more protective of Harry, as his ability could attract unwanted attention from those who might want to use it for bad purposes.
His relationship with Ginny could also be affected. Ginny is a passionate Quidditch player herself. She might initially be sad that Harry is leaving the sport. But if she truly loves Harry, she will come to understand his reasons and support him. And Harry might feel guilty for disappointing Ginny, which could add some tension to their relationship at first.
It could make it harder for him to study traditional subjects like History of Magic. He might struggle to read long texts and remember facts in the way that the professors expect. However, it could also give him an advantage in more hands - on magical classes like Potions or Defense Against the Dark Arts, where his dyslexia - related creativity could shine through.