Their relationship would likely become more complex. They would have to consider each other in new ways. For instance, they'd have to make joint decisions about their living arrangements, finances in the wizarding world (like property in Diagon Alley or Hogwarts' resources they might inherit). Also, they'd need to be more emotionally open with each other. Before, they were just friends, but now they have a legal bond. There might be some awkwardness at first, but as time goes on, they could develop a deeper, more romantic connection.
Under the marriage law, their relationship would change drastically. Initially, they might be in a state of shock and disbelief. However, as they start to navigate the new rules, they would become more reliant on each other. They would need to communicate more effectively about their goals and dreams. Their relationship would also face external pressures, such as from the wizarding community's expectations. This could either bring them closer together or cause some friction. But overall, they would have to learn to be partners in a way they never were before, sharing not only their adventures but also their daily lives.
If the marriage law came into effect, their relationship would transform in many ways. They would have to redefine their boundaries. They might start to notice little things about each other that they never paid attention to before, like Harry realizing how Hermione organizes their magical research materials or Hermione noticing Harry's unique way of handling his Gryffindor responsibilities. Their relationship would go from a platonic friendship to a more committed, romantic, and legally - bound union. They would have to deal with issues like jealousy from other potential suitors, and also learn to support each other in different ways than they did as just friends.
One possible fanfiction could be that the wizarding world enacts a new marriage law which somehow forces Harry and Hermione to consider marriage. They might initially be resistant as they've always seen each other as friends. But as they start to go through the motions of fulfilling the law's requirements, they discover new aspects of their relationship. They realize that they share a deeper bond than they thought, filled with mutual respect and understanding.
Hermione might become more guarded initially. Given her history with Draco, she would be cautious about opening up. But as the relationship progresses, she could become more empathetic towards Draco's situation. Draco, on the other hand, may start to shed some of his pure - blood arrogance. He might become more open - minded and less judgmental as he gets to know Hermione better.
In fanfiction, if a marriage law were imposed on Hermione and Viktor, it could initially cause a great deal of turmoil. Viktor, being from Durmstrang, has a different cultural background. He might see the law as an opportunity to fully claim Hermione, whom he has long admired. However, Hermione, being a strong - willed and independent witch, would likely resist at first. She values her freedom and her own choices in matters of the heart. Their relationship could become a battle between Viktor's traditional values and Hermione's modern, liberal views.
Their relationship could develop in a rather complex way. Given their very different backgrounds, there would be a lot of clashes. However, the marriage law forces them to coexist. As time passes, they might find common ground in their love for the wizarding world, albeit from different perspectives. Hermione could introduce Lucius to the idea of a more inclusive wizarding society, and Lucius could teach Hermione about the long - standing pure - blood traditions that have some value, if reformed. This mutual exchange could lead to a grudging respect and eventually something more like friendship or even love.
Their relationship could develop in a way that they become each other's support system. Given Hermione's often - alone - in - her - pursuits - type of situation and Cedric's more social but also pressured position as a popular student. They could learn from each other. For example, Cedric could teach Hermione how to relax a bit more and enjoy the simpler things in life, while Hermione could help Cedric with his studies or with any political issues he might face within the school or the wizarding world later on. And this mutual growth could lead to a deep and loving relationship.
At first, it would be very rocky. Snape is used to being alone and Hermione is used to being with her friends. But as time passes, they might start to share their interests. Hermione might show Snape some new Muggle inventions that could be useful in potions. Snape could teach Hermione some advanced potions techniques. This exchange of knowledge could lead to a mutual admiration.
Their relationship might start off rocky due to the forced nature of the marriage law. Sirius could be overprotective at first, seeing Hermione as someone he needs to shield from the dangers of his world. Hermione, on the other hand, might be frustrated by his overbearing attitude. But as time passes, they learn to communicate better and understand each other's strengths.
Severus could become more accepting of change. Hermione, with her Muggle - born ideas and modern ways, would introduce new concepts to him. He may start to see the wizarding world in a different light. Hermione, on the other hand, might become more guarded. Being associated with Severus, who has a somewhat controversial past, she would have to deal with the stares and whispers, which could make her more cautious in her actions and words.
At first, their relationship might be full of distrust. Hermione may suspect Theodore of having ulterior motives due to his Slytherin background. But as time passes, they start to understand each other better. They could share their love for books and knowledge, which could be a bridge between them. Eventually, they might develop a deep bond of friendship and perhaps more, as they realize they have more in common than they thought.
At first, Hermione would probably be in shock and defiance. But she'd quickly start to strategize. She'd use her vast knowledge of magic to protect herself from Bellatrix's potential outbursts.