Another situation could be a miscommunication. For example, Naruto misinterprets something Hinata says or does, and it leads to a big fight. Hinata, being a sensitive person, might feel deeply hurt by Naruto's reaction. And Naruto, being a bit oblivious at times, doesn't realize how much damage he's done until it's too late and she decides to leave.
One possible scenario could be that Naruto makes a huge mistake in their relationship. Maybe he's so focused on his duties as Hokage that he neglects Hinata's feelings. He might start taking her for granted, not spending enough time with her or not being there for important moments in her life.
One possible scenario could be that Naruto finally realizes his feelings for Hinata during a peaceful moment in the village. Maybe after a big battle when he sees Hinata's strength and kindness more clearly. He might take her to their favorite spot, like the cliff overlooking the village, and nervously ask her out, stuttering a bit as he does so.
Well, it could be a situation where Hinata is trying to protect someone else from Naruto, perhaps believing he is a threat at that moment due to some false information. She might then end up hurting him while trying to fend him off. Or, in a darker fanfiction, there could be an alternate universe where Hinata has turned evil and deliberately targets Naruto to cause him harm.
One possible scenario could be Naruto and Hinata being shocked by the unexpected match - ups in the death battles. Maybe they'd be cheering for their favorite characters or be completely baffled by some of the outcomes.
One possible scenario could be Naruto confronting Hinata about her overprotectiveness. He might feel that she's being too clingy and it's affecting his freedom to pursue his ninja duties.
In a fanfiction, Naruto might plan a big public proposal. He could gather all their friends and family in the Hidden Leaf Village. He would make a big speech about how Hinata was the one who saw him when others didn't, and her love changed him. Then, with everyone watching, he would pop the question.
In the 'naruto is cheated on by hinata fanfiction', it could be that Hinata's own insecurities play a part. She might feel that Naruto is too focused on his ninja duties and not enough on their relationship. So, she could start getting closer to someone who seems to give her more attention. This new connection could be misconstrued as cheating, when in reality she's just seeking emotional support. However, Naruto, seeing her with this other person, would think she's being unfaithful.
It might occur when Naruto is training hard and gets injured. Hinata comes to his aid, tending to his wounds. As Naruto looks at her with gratitude, he realizes his true feelings for her. Hinata, seeing the look in his eyes, blushes deeply. Then, slowly, they share their first kiss, a tender moment filled with unspoken love.
One possible scenario is that Hinata and her team are on a mission in an unknown territory. They encounter a group of rogue ninjas. Hinata tries to defend her team but is outnumbered. Just as they are about to be defeated, Naruto shows up, having followed Hinata's chakra signature. He quickly takes down the rogues with his speed and strength.
There could be a scenario where Naruto doesn't really understand the significance of the kiss at first. But Hinata is deeply affected and starts avoiding Naruto. This makes Naruto wonder what he did wrong and he tries to find out. As he tries to figure things out, he starts to realize his own feelings for Hinata might be more than just friendship. In some fanfictions, this also might attract the attention of other characters who have an interest in either Naruto or Hinata, causing some jealousy and drama.
One possible plotline could be Naruto's struggle to adapt to his new disability. He might have to relearn his ninja skills, like how to fight and perform jutsus with only one arm. This could lead to him developing new and unique techniques that rely more on his chakra control and his legs for mobility.