Well, this kind of fanfic might explore a complex emotional shift. Maybe the author wants to show a new direction in the relationship between the characters. It could be due to some big changes in Vegeta's behavior or actions that led to this statement of no longer loving him.
I'm not sure specifically as there could be many interpretations. It might be about a situation where Harry has reached a point of apathy or detachment in the fan - created story.
Well, it can create a lot of drama. If the main character doesn't love Vegeta anymore, it might lead to a break - up if they were in a relationship. This could then cause Vegeta to reevaluate his actions and behavior.
It could be that the character has found someone else who shows more care and attention. In fanfics, new characters can be introduced who are more in tune with the main character's emotional needs. Unlike Vegeta, who may be seen as too cold or unresponsive.
Another plot could be that the character who says this has met someone else who shows them a different kind of love and attention. They start comparing this new person to Vegeta and realize that they are no longer in love with Vegeta. This new relationship makes them see all the flaws in their relationship with Vegeta that they were previously overlooking.
Perhaps in the 'sakura doesn't care anymore fanfiction', Sakura has been betrayed one too many times. She could have been let down by her friends or mentors. As a result, she withdraws from the world around her and stops caring about the things that used to matter to her, like the outcome of battles or the well - being of the village. This change in her attitude would have a significant impact on the story's dynamics.
It could mean a fan - created fictional story where the character Harry has reached a point of no longer caring about something. Maybe he's been through a lot in the original story context and in this fanfic, he's just given up on caring about certain events, relationships, or goals.