Well, it should start with small interactions. Maybe they are paired for a Potions assignment. At first, they are both reluctant, but they gradually notice little things about each other. Draco might notice how Hermione is so focused and determined in her work, and Hermione might see Draco's precision in handling the ingredients. This initial mutual respect can be the starting point for a deeper relationship.
The development could also be based on a common goal outside of their usual Gryffindor - Slytherin rivalry. For example, if there is a threat to Hogwarts that neither the Gryffindors nor the Slytherins can handle alone. Hermione and Draco, being two of the most intelligent students in their respective houses, are brought together to figure out a solution. As they face challenges and setbacks together, they start to rely on each other more and more, and their relationship grows. They might argue a lot at first, but over time, they learn to listen to each other and value each other's opinions. This shared experience can lead to a believable relationship.
Their relationship could change drastically. If the spell causes them to rely on each other to fix the mess, they might start to see each other in a new light. For instance, Draco might admire Hermione's quick thinking when it comes to finding a solution, and Hermione could see Draco's vulnerability as they struggle together.
In some fanfictions, there could be a slow - burn development. Hermione might initially despise Draco for his cruel remarks and actions. But then she starts to notice his insecurities and the pressure he is under from his family. Draco, on the other hand, might be attracted to Hermione's intelligence and courage. This gradual realization of each other's qualities builds a relationship that is fraught with the pain of their past interactions and the difficulty of changing their established opinions.
The relationship would be severely damaged. Hermione would likely feel betrayed, angry, and hurt. Draco, on the other hand, might initially feel a sense of relief but could later be filled with guilt.
The original dynamic was very much based on the pure - blood vs. Muggle - born divide. In fanfiction, this can be broken down. Writers might have Hermione and Draco meet in a different context, outside of Hogwarts perhaps. This new setting allows them to form a relationship without the pre - existing biases. It gives a chance for a fresh start, where their personalities can interact without the weight of the wizarding world's social structure getting in the way right from the start.
In many fanfics, their friendship often starts in an unexpected way. Maybe they are paired for a school project at Hogwarts. At first, they are full of distrust and dislike, but as they start to work together, they gradually find that they have some common interests, like a passion for advanced magic theory. They begin to respect each other's intelligence and magical abilities, which is the first step in building their friendship.
In these types of fanfics, often the situation of Hermione not being able to breathe serves as a catalyst for Draco to show his more caring side. For example, in some stories, he might use his knowledge of dark magic (which he has from his family background) to counteract whatever is causing Hermione's distress. This mutual dependence starts to break down the barriers between them. They begin to see each other in a new light, not as enemies from their Hogwarts days but as individuals who can support and care for one another.
At first, they're likely to be shocked. But then they start to understand each other more. Draco might become more protective of Hermione, and Hermione might see a different side of Draco. They go from being rivals to having a family - like bond.
In many fanfictions, their relationship is full of tension. They argue a lot about how to raise the baby, what values to instill in it. Hermione wants the baby to be brave and kind like a Gryffindor, while Draco wants the baby to be cunning and ambitious like a Slytherin. These differences in parenting styles create friction between them, but also provide opportunities for character growth and deeper understanding of each other as they work through their issues.
Their relationship would likely become more complex. It might start with a lot of tension as Draco tries to come to terms with the news. But over time, they could develop a new level of understanding and respect for each other.
In many of these fanfictions, their relationship starts off rocky. They're forced into this marriage situation, and at first, they can't stand each other. But as time goes on, they start to communicate more. Small things like sharing a meal or discussing their daily lives break the ice.