Well, in certain fanfictions, Edward leaves Bella due to a misunderstanding. Maybe he saw Bella with another guy and misinterpreted their relationship. Or perhaps he got some wrong information about Bella's feelings for him. He then decides to leave in a huff. There are also some more creative ideas in fanfiction, like Edward being magically compelled to leave by a witch - like character who has some vendetta against Bella and wants to see her heartbroken.
Some fanfictions focus on the time when Bella was separated from Edward in 'New Moon'. They might explore what Bella was really thinking and feeling during that time more deeply. It could show her inner struggle and how she coped with the loss in ways that the original story didn't fully cover.
Some fanfictions focus on Bella's relationship with Jacob during 'New Moon' from a different perspective. Instead of just the love triangle aspect, they might explore how Jacob's presence helps Bella heal in a more profound way, and how it could potentially change her feelings for Edward in unexpected ways when he returns.
One interesting 'Edward Bella New Moon' fanfiction could be those that explore Bella's life during Edward's absence in more depth. For example, fanfictions where she discovers new powers on her own.
One scenario could be that they kiss during a dangerous situation. For example, after Edward saves Bella from a group of villains, their emotions are running high and they can't help but kiss.
In some fanfictions, they may face challenges in their marriage related to Bella's aging process. Since Edward is a vampire, this could create some tense yet interesting moments as they figure out how to deal with it. For example, they might explore different ways to ensure their time together is as long as possible. They could also face external threats that test their marriage bond, like new vampire clans that are not happy about their union.
One interesting scenario could be that they meet in a completely different setting than in the original story, like in a bustling city during a music festival. The chaos of the festival would add a new dynamic to their meeting, with loud music and a sea of people around them.
One interesting scenario could be Edward and Bella practicing their dancing skills together. Maybe it's a ballroom dance, and they are learning the steps, with Edward being a bit overprotective as he guides Bella, and they share some sweet, awkward moments as they try not to step on each other's feet.
One interesting scenario could be when they kiss in a secret garden filled with rare flowers. The beautiful setting adds to the intensity of their moment. It's like the whole garden is holding its breath as they share that kiss.
In some fanfictions, their fight might be over Bella's decision to become a vampire. Edward might be against it initially, fearing for her soul or something like that. Bella, on the other hand, could be really determined and they end up in a heated argument where she accuses him of not respecting her choice and he tries to make her see his point of view.
One interesting scenario could be that they reunite in a beautiful meadow, just like their first special moments together. The sun is shining, and they run towards each other, their love reigniting instantly.