Maybe he's frustrated or facing a tough situation that he can't handle maturely.
It could be that someone crossed a line with him or something happened that went against his beliefs. Sometimes characters have emotional outbursts when their expectations aren't met.
Well, there could be various reasons. Maybe he lost a big battle, had a fight with a close friend, or felt betrayed. Such events can trigger his temper and cause him to throw a tantrum.
Maybe he ate something bad that made him sick.
Well, in some fanfictions, Dean might throw away the amulet because it represents a past he wants to leave behind. Maybe it's tied to a lot of pain and loss, and getting rid of it is a way for him to move forward. It could also be that he feels like the amulet has lost its significance in his new journey, so he just discards it.
It could be that he was overtired or hungry. Sometimes even a small thing can set them off if they're not feeling their best. Or maybe someone didn't listen to him and that made him angry.
The one mystery novel I read that made me want to curse was 'Wear It Quickly, Female Supporting Character Born to be a Big Boss'. Although the main character was very capable, he was always very unlucky. The difficulty of the mission became higher and higher, and he was always fooled by the main character. I won't say the swear words that I want to say, but I hope that the author can give the protagonist some good luck and opportunities so that she can successfully complete the mission and not always be forced into a desperate situation.
He could be frustrated with her. Maybe they had an argument earlier, and Percy, not knowing how else to express his feelings, throws the apple as a way of getting a reaction from her. It's like a childish way of saying 'I'm mad at you' without using words.
In some Naruto fanfictions, Naruto might faint due to overusing his chakra. For example, if he pushes himself too hard in a battle, like when he tries to use a new and extremely powerful jutsu without fully mastering it. His body can't handle the excessive chakra drain, and he faints as a result.
Alright, the following is a novel recommendation that meets your requirements: "Furious Sweetheart" [Description: Su Mo is a hot-tempered sweetheart who gives people headaches when he gets angry.] When he was in high school, he was cold on the outside but fanatical on the inside, always contradicting others. However, when he met her, his hot-tempered little sweetheart side would be revealed. The two of them had gone through many difficulties and challenges together and finally came together. Excerpt: Su Mo sat by the window and frowned as he looked at the scenery outside. "What are you doing?" Qin Mo walked over and patted his shoulder gently. "I'm thinking about life." Su Mo raised his head, his eyes empty. "What are you thinking about?" Qin Mo asked curiously. "Why should I live?" Su Mo was silent for a while before he finally spoke. Because you're very cute." Qin Mo replied with a smile. Su Mo's anger flared up again. He jumped up and grabbed Qin Mo's arm." You bad person! You don't know how scary I am when I'm angry!" Qin Mo smiled lightly." I know you're angry, so I love you." Su Mo suddenly felt a wave of warmth. He turned around and looked into Qin Mo's eyes." Thank you for loving me." Qin Mo smiled." Because I love you too." The two of them hugged each other and quietly looked out the window, enjoying this beautiful love. They believed that as long as they loved each other, they would be able to overcome all difficulties together and welcome their own happiness.
Perhaps in the fanfiction world, Naruto has other relationships or commitments that make him avoid Sakura. For example, he could have made new friends or allies who don't get along well with Sakura, so to keep the peace or not get involved in drama, he stays away from her.
Another aspect could be related to past traumas. Naruto has been through a lot, and if the Konoha 11, even unintentionally, reminded him of some of the negative experiences he had in Konoha, like the ostracism he faced as a child, it could make him hate them in the fanfiction.
Maybe he hates it because it often distorts the real ninja world he knows. Fanfictions might create false or out - of - character scenarios that he can't stand.