Sometimes, in fanfiction, Sakura might use her medical skills against Naruto in a negative way. For example, if she withholds treatment or gives him a wrong diagnosis out of some conflicted feelings towards him. This is quite cruel and can cause both physical and emotional harm to Naruto.
One common element could be a significant event that causes Naruto to change his feelings towards Sakura. For example, he might discover something she did in the past that he can't forgive. Another element might be the exploration of how Sakura reacts to Naruto's hatred, which could lead to her character growth or downfall.
Yes, there probably is. In the Naruto fandom, there are various fanfiction themes, and the 'narusaku' (Naruto - Sakura relationship) with Naruto hating Sakura can be an exploration of an alternative take on their relationship. Some fans might write this to explore what - if scenarios or to express their own views on the characters' dynamics that deviate from the canon.
Often in fanfiction, Naruto moves on from Sakura when he experiences a major event. Say, he nearly dies in a battle and has an epiphany. He realizes that life is short and he should focus on things that truly matter. His feelings for Sakura seem less important compared to his newfound understanding of life, and so he moves on.
One common way is that Naruto becomes more romantic. He might start writing poems or giving Sakura flowers, which is a far cry from his usually rough - and - tumble self. This is his way of showing his love for her in the fanfiction world.
Well, in some Narusaku fanfictions, Sakura might hurt Naruto emotionally by choosing Sasuke over him repeatedly. This can make Naruto feel rejected and unloved, causing him pain.
In some narusaku fanfiction, Naruto might avoid Sakura because the story could be exploring different relationship dynamics. Maybe the author wants to create a more complex plot where Naruto has his own reasons, like he's focused on his ninja goals and doesn't want any distractions from Sakura at that moment.
One common scenario is when Sakura chooses Sasuke over Naruto time and time again. It makes Naruto feel like he's second best, which deeply wounds his heart as he loves her so much.
Another way is through isolation. Ego could isolate Peter from his friends and allies on his planet. This makes Peter feel alone and more dependent on Ego, which can be a form of psychological harm.
A third theme can be redemption. Maybe Naruto or Sakura had some regrets from their past actions or decisions. In these fanfictions, they could be on a journey to make up for those things while also falling in love. This adds depth to their characters and makes the story more engaging as they strive to be better people and partners.
One common theme is grief. Characters like Sakura, Sasuke, and the other villagers would experience intense grief over Naruto's death. Another theme could be legacy. People would start to think about the things Naruto left behind and how to continue his ideals.