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.
Maybe he feels that the rules at Hogwarts are too restrictive and are hindering his ability to truly learn and grow as a wizard. He might think that the traditional teaching methods are not suitable for him and his unique style of magic, so he rebels against the system.
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.
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.
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.
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.
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.
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.
His relationships would change a great deal. The friends who once knew Harry as a somewhat vulnerable and kind - hearted person would now have to deal with this new, cold - edged strength. Those friends who were closer to him for his softer side might drift away. However, some might see this as a positive change in a way, like they might think he's finally growing up and becoming more self - reliant. But still, there would be a lot of adjusting to do on both sides.