Her relationship with Natsu would likely change. Natsu might be initially distrustful of Lucy if he senses her connection to End, since End is often seen as an enemy. But then as he realizes that Lucy is still the same person deep down, their bond could become even stronger as he helps her control this new aspect of herself.
One interesting 'Fairy Tail End x Lucy' fanfiction could be the one where End and Lucy team up to fight a new and powerful dark magic user. In this fanfic, End's demon powers combined with Lucy's celestial magic create a unique and dynamic duo.
If Lucy never joined Fairy Tail, the friendships and relationships among the characters would form in a very different way. Also, many of the story arcs might not unfold as they do in the original plot.
One popular theme is Lucy's growth as a wizard. Fans often explore how she overcomes new challenges and becomes stronger. Another theme is her relationships, not just romantic ones but also her friendships within the guild. For example, her bond with Natsu and how they support each other through tough times.
One way it could end is with a big showdown. The Fairy Tail guild members find the kidnappers' lair, and there's an epic battle. Natsu defeats the main kidnapper with his powerful fire magic, and Lucy is freed. Then they all return to the guild, where there's a big celebration.
Well, to find a Fairy Tail fanfiction involving Lucy and Froch, start with checking out dedicated Fairy Tail fan communities. These communities often have their own sections for fanfiction. Maybe post a request there asking if anyone knows of such a fic with Lucy and Froch. Another option is to use Google. Type in something like 'Lucy Froch Fairy Tail fanfiction' and look through the search results. Some of the top results might be what you're looking for.
I'm not sure if there is a specific 'Fairy Tail Lucy commits suicide' fanfiction. Fanfiction can cover a wide range of themes and scenarios, but this is a rather dark and uncharacteristic concept for the 'Fairy Tail' universe. It goes against the overall positive and adventurous spirit of the series. However, with the vast amount of fan - created content out there, it's possible that something like this might exist in a very small corner of the fanfiction world.
In Fairy Tail fanfiction, Dark Lucy often represents a more complex and edgy version of the character. She might be portrayed as having a darker past or different powers. For example, she could have been influenced by some dark magic which changed her personality. This can add a new layer of depth to the Fairy Tail universe.
In fanfiction, Dark Lucy might be a part of a parallel universe story. In this universe, the events that shaped Lucy in the original Fairy Tail series happened differently. So she turned out to be 'Dark Lucy'. She could be a key figure in a war between light and dark forces in this alternate Fairy Tail world.
One great fanfiction could be where Lucy has to outwit Midnight in a battle of magic. Maybe she uses her Celestial Spirit powers in a new and creative way to overcome Midnight's illusions. It could be an action - packed story with lots of twists and turns.