Their new relationship as cousins could also make them more of a target for those who oppose their families. For example, Voldemort might see their connection as a threat and try to drive a wedge between them. This would force them to rely on each other more, and they would have to be more careful about their actions at Hogwarts. They might even start to study magic together to be better prepared for any threats.
They could form a sort of alliance. Harry, being the hero figure, could bring Draco into his circle of friends more often. Draco, with his Slytherin knowledge and connections, could help Harry in understanding some of the more mysterious aspects of Hogwarts, like the secrets of the Slytherin common room. Their relationship could bridge the gap between Gryffindor and Slytherin, changing the whole dynamic of the houses at Hogwarts.
Their relationship could change Hogwarts in many ways. For one, they might form an alliance against common enemies within the school, like bullies or those who promote pure - blood supremacy too aggressively. This could lead to a more united front among the students. Also, their friendship (if it develops) could influence house rivalries. Gryffindor and Slytherin might not be as divided as before. Students might start to see that there are good people in both houses and that family bonds can transcend house differences.
In Hogwarts, it would be a wild change. Draco would be super conflicted. He's been taught to look down on Gryffindors and half - bloods like Harry. But with Harry as his brother, he'd have this internal struggle. Harry would probably be more open to Draco than Draco is to him. Harry would hope to convert Draco to a more accepting way of thinking. There would be times when Draco would be mean to Harry in public to keep up appearances, but in private, he might start to question his own beliefs because of their relationship.
It could make Draco feel exposed and vulnerable at first. But if Hogwarts uses the knowledge from his memories to help him, Draco might develop a newfound respect and loyalty towards Hogwarts. He could see it as an entity that truly cares about him rather than just a place of learning.
At first, their relationship might be full of confusion. They've been brought up with different values - Harry with his Gryffindor courage and sense of justice, and Draco with Slytherin pride and ambition. But as they discover they're twins, they'd start to see the similarities in themselves. They might begin by being a bit hostile towards each other, but gradually, as they face challenges together, like dealing with a particularly tough teacher or a dangerous creature on the grounds, they'd form a bond.
If they were friends before Hogwarts, it could create a lot of internal conflict at Hogwarts. Draco might be torn between his new Slytherin friends who dislike Harry and his long - standing friendship with Harry. He might try to keep their friendship a secret, which could lead to misunderstandings between them.
If Harry were Draco's older brother in this fanfiction, their relationship at Hogwarts would be a total mess - up of the original dynamic. Harry would be constantly torn between the Gryffindor values he adheres to and his family bond with Draco. Draco might start to question his Slytherin - only ideology because of his connection to Harry. For example, they might find themselves in situations where they have to choose between their house loyalties and their new - found brotherly bond, like during the Quidditch matches or the Triwizard Tournament.
Their relationship would likely become more collaborative. They would have to communicate regularly about Teddy's needs, like his schoolwork, his magical training, and his emotional well - being. This would force them to put aside their past grudges and start seeing each other in a new light.
Their relationship would likely become more collaborative. They would have to put aside their past differences for the sake of their son. Instead of being rivals, they would become partners in parenting. They would need to communicate more often about their son's upbringing, which would force them to get to know each other better on a personal level.
It could change in a more positive way. In detention, they might have to rely on each other to get through Snape's tasks. If they are made to work on a complex magical experiment, they would need to communicate. This communication could break down some of the barriers between them. Maybe they start to exchange a few friendly words outside of detention, slowly building a more amicable relationship.
Their relationship could grow deeper as they share the responsibility of shaping the next generation of wizards. They would have to communicate constantly about the students' progress, and this could lead to a better understanding of each other's thoughts and feelings. For example, Hermione might learn more about Harry's intuition when it comes to students with potential, and Harry could gain more knowledge from Hermione about the importance of academic rigor.