Edward would probably be very confused at first. He would try to understand why Bella would leave him for Rosalie. He might start to analyze all their past interactions, looking for signs that he missed. Eventually, he could become angry, not at Bella directly, but at the situation. He might also feel a sense of betrayal, not just from Bella but also from Rosalie in a way, since Rosalie is 'taking' Bella away from him.
Yes, there are some. You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. However, this concept goes against the original 'Twilight' story's portrayal of the characters, so it might be a bit controversial among die - hard fans.
One possible reason could be that Bella discovers a side of Rosalie that she feels more connected to on an emotional level. Maybe Rosalie shows her a different perspective on the vampire world that Edward had been hiding from her. Another aspect could be that Bella has grown tired of Edward's over - protective nature and sees Rosalie as a more independent and free - spirited vampire to be around.
A possible plot might involve Rosalie having some sort of change in her feelings towards Edward. She might start to show him more affection than usual. Edward, being a bit confused by his own emotions, succumbs to her advances while still being in a relationship with Bella. This could lead to a lot of drama, with Bella finding out and feeling heartbroken.
The allure lies in the fact that we can see different sides of Rosalie and Edward. In fanfiction, we might see a more vulnerable Edward or a more forgiving Rosalie. It gives fans the chance to rewrite their relationship in a way that satisfies their own desires for the characters.
One great aspect of Rosalie and Edward fanfiction is the ability to give them new adventures. They could go on a journey to discover more about their vampire origins together. Fanfiction writers can play with the idea of them facing new enemies or uncovering secrets that could change the way they view themselves and their place in the vampire world. This allows for a fresh perspective on the two beloved characters.
In Rosalie and Bella mates fanfiction, Rosalie's character development could involve her letting go of her past traumas more easily with Bella's presence. She becomes more forgiving and less bitter. Bella's development could be quite complex. She might grow to have a more nuanced view of the vampire world. She could start to question some of the things she once took for granted. Their relationship forces them both to look at themselves and grow in ways they hadn't expected.
Their personalities interact in various ways. Rosalie, being proud and protective, might initially be overbearing towards Bella. However, as time passes, she realizes that Bella has her own strength. Bella, being gentle and curious, might be intrigued by Rosalie's confidence. She may start to imitate some of Rosalie's behavior in a positive way. Also, their different approaches to relationships, with Rosalie being more guarded and Bella more open - hearted, can lead to interesting conversations and developments in the fanfiction.
Rosalie in GP fanfiction often plays the role of the protective sister - like figure. She has her own opinions and is not afraid to voice them. Bella, in contrast, is more of the newcomer trying to find her place. Rosalie might initially be cold towards Bella, but she gradually warms up as she realizes Bella's importance to the family.
One great male Bella and Rosalie fanfiction is 'A Different Perspective'. It shows a unique relationship between them where male Bella brings a new dynamic to the story. He's not the typical Bella we know, and his interactions with Rosalie are filled with tension and unexpected alliances.