In some fanfictions where Lucy dies, it often leads to a dark and somber turn for the other characters. Natsu, for example, might go into a deep rage or depression. Her death could be a catalyst for the guild to seek revenge against the force that caused it. It might also result in the guild falling apart for a while as they struggle to come to terms with her loss.
Another scenario could be that in a battle against a new, extremely powerful foe, Lucy is caught in a crossfire between two massive magical attacks. Despite her friends' attempts to protect her, she gets fatally injured and dies. This would have a huge impact on the other characters in the Fairy Tail guild, leading to themes of grief, revenge, and moving on.
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.
In some fanfictions where Erza dies, it could lead to a dark and tragic turn for the Fairy Tail guild. Her death might cause the other members to question their strength and purpose. For example, Natsu might be consumed by a desire for vengeance against the ones who caused her death.
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.
Well, in fanfiction, Lucy might be crying because she lost a fight against a powerful enemy. Maybe she felt she let her friends down. For example, if she was unable to protect someone important in the story, it could lead to her breaking down in tears.