Sirius might be the one person she knows who won't take Ron's side no matter what. He has a reputation for being independent - minded. Hermione may have developed a relationship with him where she can be completely honest and vulnerable. He could have been a source of advice for her in the past, especially when it comes to matters of the heart and relationships. Since Ron's cheating has shattered her world, she runs to Sirius, hoping to find some clarity and a shoulder to cry on in this person she has come to trust.
Hermione may view Sirius as someone who has been through a lot in life. He has his own share of betrayals and hardships. So, she might think that he can empathize with her situation. Also, Sirius has always been a bit of an outsider in the wizarding world, and Hermione, with her Muggle - born status, might feel a connection to that. Their relationship could be based on mutual understanding of not always fitting in perfectly, which makes her run to him when Ron cheats.
She might be extremely hurt and angry. In such a situation, running to Sirius could be her way of seeking comfort and support from someone she trusts. She could be feeling betrayed and might have a hard time believing that Ron would do such a thing.
She might be heartbroken. Hermione is a strong - willed character, but being cheated on would surely shatter her. She could initially be in disbelief, given her trust in Ron. Then, she might become angry and start to distance herself from Ron, focusing more on her own studies or other relationships, like her friendship with Sirius.
Sirius could play multiple roles. Firstly, he could be a friend who listens to Hermione's rants and sorrows. Secondly, he might act as a protector, making sure Hermione doesn't do anything rash in her emotional state. And thirdly, he could be a catalyst for Hermione's growth. His presence could make Hermione realize that there are other aspects of life and relationships that she has been overlooking. His friendship could open up new opportunities for her, whether it's in terms of magical knowledge or personal development, all while she is dealing with the aftermath of Ron's cheating.
There could be. Fanfiction is a vast and diverse world where authors can take the characters in all kinds of directions. But it's important to note that this isn't in line with the general perception of the characters' relationships in the official books. It might be an interesting exploration for some who like to see how different twists can change the story, but others might be put off by it.
Hermione would probably be extremely hurt. She's a very loyal person, and to have Ron cheat on her would shatter her trust. She might become withdrawn, not wanting to talk to anyone at first, and just try to process the pain on her own. Then she decides to run to Lucius, perhaps because she feels she has nowhere else to turn, or she thinks Lucius can offer her some sort of solution or support.
Often, it begins with Hermione trying to help Sirius deal with his post - Azkaban trauma. She uses her knowledge and compassion to reach out to him. As he heals, he starts to see her in a new light. Their relationship then grows as they start to understand each other better. The lemon parts usually are used to explore their more passionate and private moments, which are often written in a very tender and intense way, adding a new dimension to their relationship.
A father - daughter like relationship could be expected. Sirius, having lost so much in his life, might see Hermione as someone he can care for and protect, much like a daughter. He could be very protective of her and give her advice on how to navigate the complex wizarding world.
Well, in a fanfic, Hermione might start spending a lot of time with Sirius. Maybe they have deep conversations about magic that Ron can't really follow. For example, Sirius could be sharing some really advanced dark magic knowledge with Hermione that Ron doesn't understand. This could make Ron feel left out and jealous because he wants to be the one Hermione is so interested in. Also, Sirius is older and more experienced, which could make Ron feel inferior in Hermione's eyes.
Perhaps Lucius is bored with his current situation. Helping Hermione gives him something new and exciting to do. He might also want to show off his power and influence. By being the one Hermione runs to, he can prove that he is a force to be reckoned with, and that he can be the knight in shining armor, even if his intentions are not entirely pure.
It would likely make their relationship more complex. Harry might feel a bit jealous at first because he had such a strong connection with Sirius. Ron, on the other hand, might be a bit confused. But overall, they would still be her friends. They might be more protective of her, especially if there are threats related to Sirius's past enemies. And Hermione would have to balance her new identity as Sirius's daughter with her long - standing friendships.