It could be someone completely new, a character created just for this fanfic. Maybe he's a normal villager who has a kind heart and fell in love with Sakura when he saw her helping people in the village. He doesn't have any ninja powers but he has a great sense of humor and that's what attracted Sakura to him.
It could be Hinata. In the original series, Hinata has a deep affection for Naruto. In a fanfiction, it would be a natural progression for her to be his secret fiance. Maybe they got engaged secretly to avoid some political unrest in the village.
Jessica Chambers was a victim in this story. She was a young woman who unfortunately became the center of a very tragic and mysterious case when she was found burned in a vehicle.
Well, it's hard to say for sure. While there are suspicions that some stories on '90 Day Fiance' are fake, we don't have absolute proof about Caesar's story specifically. However, considering how reality TV often works, with producers having a lot of control over the narrative, there is a good chance that parts of his story were not entirely genuine. They might have added twists and turns that didn't really happen in real life just to create more drama and keep viewers hooked.
There could be. Reality shows often have some elements that are not entirely real. In the case of '90 day fiance', some participants might be influenced by the producers to create more exciting storylines, which could lead to fake stories. For example, they might pretend to have a bigger conflict or a more intense love story than what actually exists in their real relationship.
A possible plot twist could be that his secret fiance is actually an enemy in disguise. She got close to Naruto under false pretenses, and as the story unfolds, Naruto has to deal with the betrayal and the fact that his feelings were used against him.
Well, in the 'my fiance is in love with my sister novel' context, another option could be to talk to my sister. Maybe she is also confused or unaware of the depth of the situation. By communicating with her, I could find out if she has any feelings for my fiance and try to resolve the issue together.