The twin could create jealousy in Rosalie if Emmett shows too much interest in the new character. Since Rosalie is very protective of her relationship with Emmett, any threat, even if it's just a perceived one from her twin, could cause a rift between her and Emmett. On the other hand, it could also strengthen their bond if they work through it together.
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.
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.
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.
Edward Cullen is often a popular character in these fanfictions. Since he has a close relationship with Bella in the original story, his role can be further explored in relation to Rosalie and Bella's relationship. Another one could be Alice Cullen. Her ability to see the future can add an interesting dynamic, especially when it comes to predicting things that might affect Rosalie and Bella's friendship or any adventures they might go on.
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.
Well, for a fanfiction where an OC is heartbroken by Rosalie, you could look for ones that explore themes of unreciprocated love. Maybe the OC has deep feelings for Rosalie, but she is either oblivious or just not interested. Some fanfics might show how the OC tries to win Rosalie over but fails miserably, like in 'The Failed Courtship of OC and Rosalie'. It could also be that Rosalie is already committed to someone else, causing the OC's heartbreak as seen in 'Rosalie's Unattainable Heart'.
In fanfiction, Rosalie and Emmett's love could be explored through different scenarios. Maybe a story could be written about how they first fell in love. It could start with Emmett's admiration for Rosalie's beauty and grace, and Rosalie being drawn to Emmett's fearless and fun - loving personality. Their love might also be depicted as a journey of self - discovery for both of them, as they learn more about themselves through their relationship.
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.
Well, in many fanfictions, Rosalie sees Bella as a part of the family. Since she values family, she wants to protect Bella from any harm. Also, she may have a sense of loyalty towards Edward, and protecting Bella is a way of showing that loyalty.