In the fanfiction, it could be that Sakura had some false expectations elsewhere. She left Naruto thinking she could find something better, but instead, she faces hardships or emptiness. Naruto, on the other hand, continues to thrive in some ways, and seeing his development makes her regret her hasty decision to leave.
Perhaps she left for what she thought were the right reasons at the time, like following her own path or someone else's influence. But then, she discovers that life without Naruto is lacking. She misses his unwavering support, his positive energy, and his ability to always see the best in her, which leads to her regret.
Sakura's regret could lead to her making amends. She might start doing things to show Naruto she's sorry, like helping him in his missions or protecting him. This changes the power dynamics between them and also affects how other characters interact with them, as they all witness this shift in their relationship.
One reason could be the motherly love. Kushina always loved Naruto deep down. Leaving him means missing out on his growth and important moments in his life. Another reason might be realizing the hardships Naruto faced without her presence. She probably feels guilty for not being there to protect him from the loneliness and the many challenges he had to endure in the village.
One possible reason could be that she realizes she truly loves Naruto too much to be apart from him. Maybe she left because of some misunderstanding or external pressure, but then comes to understand that her place is by his side. Another reason might be that she sees how much Naruto has grown and changed, and regrets not being there to support him during that journey. Also, she could have found that life without Naruto is just not as fulfilling as she thought it would be.
One possible reason could be that he finally realizes Sakura's unwavering love for him. Throughout their time apart, he might have come to understand how much she truly cared, and now he regrets not being there for her. Also, he could have seen how she grew stronger on her own and feels he missed out on being part of that growth.
It could be that she sees the pain she caused Harry and it makes her feel guilty. In the story, perhaps she was influenced by others' opinions of Harry and didn't trust her own long - standing friendship with him. When she finally comes to her senses, she regrets all the hurtful things she said or did.
One reason could be that he saw Naruto's potential later on and realized he could have been much stronger if he had trained him earlier. For example, Naruto has a great deal of chakra and tenacity, and with proper training from Kakashi earlier, he might have reached new heights faster.
One possible reason could be her deep love for Naruto. Despite her actions, she realizes that Naruto is the one she truly wants. Cheating goes against her values and her feelings for him, so she regrets it as she understands the harm it has caused to their relationship.
One reason could be that Naruto finally realizes Hinata's true feelings for him. After years of her being by his side, supporting him silently, and he may have taken her for granted or even been unkind without fully understanding her depth of emotion. Another aspect could be that as he matures, he sees how his actions, perhaps his obliviousness or his focus on other things, have hurt her. It's like when you grow up and look back at how you treated someone who truly cared for you, and you feel ashamed.
In many Sakura Regrets Hurting Naruto fanfictions, her regret is a central theme. It's often shown as a catalyst for her character growth. She may have moments of self - reflection where she realizes the depth of the pain she has caused Naruto. This could lead to her changing her behavior, like being more supportive or kind. It might also be shown through her attempts to communicate her remorse to Naruto, either directly or through her actions. For instance, she could go out of her way to help him with his missions or training, all while wearing a look of guilt on her face.
One possible reason could be that she later realizes Naruto's true nature and potential. Maybe she sees how strong and kind - hearted he is despite the hardships he faced. She might regret not being there for him during his growing - up years when he needed a mother figure.