In relation to the other students, those who are on the side of the dark arts might fear him more. But overall, it could make Harry a more central figure in the Hogwarts community, and he would have to navigate these new relationships carefully. He might have to deal with requests from students to change the wards for their convenience, which could be a source of both connection and conflict.
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.
In some fanfictions, it could be by accident. Maybe he casts a spell that interacts with the wards in an unexpected way. For example, if he tries a new spell he learned outside of Hogwarts and it has a frequency that matches the activation code of the wards.
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 his teachers could also be affected. Teachers like Dumbledore, who usually encourage students to participate in such events for their growth and development, might be initially concerned or try to persuade him to change his mind. This could cause some tension between them.
His potion - making skills might make him more respected by his classmates. They could come to him for help with their potions homework or for advice on how to improve their own skills.
With his close friends like Ron and Hermione, it might strengthen their bond. They could see it as a sign of Harry's humility and his desire to be more like them. Ron, who has always come from a not - so - wealthy family, might feel a closer connection to Harry. However, with some other characters like the Malfoy family, they might look down on him even more, thinking he has finally fallen from grace.
His anger might make some students distance themselves from him. They could be afraid of getting in trouble just by being associated with him. But on the other hand, it might also draw some students closer to him. Those who feel the same way about the staff's actions or who believe in Harry's cause would support him.
Another possibility is that his connection with the Sorting Hat plays a role. The Sorting Hat has a deep knowledge of Hogwarts and its magic. If Harry were to have a special conversation with the Sorting Hat or if the Hat were to bestow some sort of power upon him, it could enable him to activate the wards. After all, the Sorting Hat has been known to recognize and respond to the qualities and needs of the students at Hogwarts.
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 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.
It might make his relationship with his friends a bit strained. For example, Hermione and Ron might not understand his anger at first and try to convince him that his parents were heroes. This could lead to some arguments between them.