Well, it's really interesting. When Draco and Hermione switch bodies, it's not just about the physical change. Their relationship is affected on multiple levels. Emotionally, they start to empathize with each other. Intellectually, they learn from the way the other approaches problems. Socially, they see how the other is treated in their respective social circles. All these factors combined lead to a significant shift in their relationship. For instance, in some stories, this experience makes them realize that their previous animosity was based on misunderstandings, and they begin to work towards a more positive relationship.
I really like 'The Unexpected Swap'. In this fanfiction, when Draco and Hermione switch bodies, it leads to some interesting interactions with their friends. For example, Harry and Ron are completely bewildered by 'Hermione' (who is actually Draco) acting so out of character. Also, the author does a great job of showing how Draco starts to see Hermione's world in a new light while in her body, and vice versa. It's a really engaging read.
In fanfiction, the 'Mudblood' concept often acts as an initial barrier. For example, in many stories, Draco has been raised with the pure - blood ideology which makes him look down on Hermione as a 'Mudblood' at first. This creates a lot of tension and conflict between them. However, as the story progresses, Draco's views might change, either through getting to know Hermione better or having some sort of life - changing experience. This then becomes a crucial part of their relationship development as they have to overcome this prejudice.
The 'owner ring' often creates a forced connection. It can start as a source of conflict as Hermione may resist the idea of being 'owned' by Draco. But it also means they have to interact more, which can lead to a grudging respect and eventually deeper feelings. For example, if the ring gives Draco some power over Hermione's actions, she'll fight against it at first but then they might find common ground.
In many fanfictions, the leash can be a sign of control or a forced connection at first. For example, in some stories, it might be a magical object that binds them. This can lead to initial resentment between Harry and Draco. But as the story unfolds, they often start to understand each other better through this strange bond.
In many fanfictions, it can be a turning point. For example, it can make Draco realize that Hermione is more than just the 'know - it - all Gryffindor' he thought she was. It softens his view of her and can lead to the start of a friendship or even a romantic relationship.
Harry's friends would be extremely confused at first. Hermione might suspect something is wrong right away and start investigating. Ron, on the other hand, might be more straightforward and just think Harry has gone a bit strange. The Gryffindors might be suspicious of 'Harry' (really Draco) acting differently. For Draco's friends, they would also notice the change. Crabbe and Goyle might not be smart enough to figure it out immediately, but Pansy might sense that something is off with 'Draco' (really Harry).
The relationship between Draco and Hermione would be a model for their children. They'd show that love can exist between two people who were once on opposite sides. In parenting, they'd pass on the values of acceptance and understanding. They'd encourage their children to make friends from all houses and backgrounds, teaching them that differences should be celebrated rather than feared. Their own relationship journey would be a constant source of inspiration for their family.
Well, in a fanfic scenario, if Hermione experiences a loss during surgery, perhaps of a patient she was very attached to, Draco could be the one to comfort her in an unexpected way. He might use his own experiences with loss in his family to relate to her. This could lead to them becoming closer friends or even more. They could start to understand each other on a much deeper level, realizing that they both have vulnerabilities.
It could improve their relationship. After the accident, they might realize that they have more in common than they thought. For example, they both are very determined when it comes to potions, just in different ways. This newfound understanding could lead to a grudging respect and the start of a friendship.
For Hermione, her friends in Gryffindor might be initially shocked and confused. Harry and Ron, for instance, might not understand why she has Draco's tie and could be suspicious of her actions. They might think she's been influenced by the Slytherins in some way. As for Draco, his Slytherin cronies might tease him about having a Gryffindor tie. They could see it as a sign of weakness or that he's getting too friendly with the enemy.