Perhaps Sakura is overly critical of Naruto in the fanfiction. She might focus on his flaws and not give him any credit for his achievements. Naruto, who has always been striving for recognition, especially from Sakura, would be deeply affected by this. Her constant criticism could chip away at his self - esteem and cause him to sink into depression.
In this fanfiction, Sakura could be involved with someone else and flaunt it in front of Naruto. Naruto, who has deep feelings for her, would be heartbroken. Moreover, if she also asks Naruto to do things for her while still showing no interest in him romantically, it would be a very cruel situation for Naruto and could easily push him into a state of depression.
In many of these fanfictions, Sakura's depression can strain her relationship with Naruto. If she's depressed because of her feelings for him, she might push him away. For example, she could avoid him or be short - tempered when he tries to be friendly. With her friends like Ino, her depression might make her seem distant, causing Ino to be worried and try to reach out more.
Sakura could encourage Naruto to engage in activities he used to enjoy. For example, if Naruto liked eating ramen, she could take him to Ichiraku's. Also, she could remind him of his past achievements and how far he has come. By showing him that he is capable of great things, it might boost his self - esteem and help him out of his depression.
At first, Naruto might be really confused. He's used to the normal Sakura, so when she starts acting all yandere, he'd be like 'What's going on, Sakura - chan?'. He'd probably try to talk to her and find out what's wrong.
One possible reason could be unrequited love. If in the fanfiction, Sakura continuously rejects Naruto or shows no interest in him, it can lead to his depression. Naruto has deep feelings for Sakura for a long time, and constant rejection can be soul - crushing.
Well, on one hand, it might make Naruto a bit uncomfortable at first. He's used to being independent. However, as time passes, he might start to rely on Sakura's protection in a way. It could also cause some jealousy among other characters who are close to Naruto, but overall, it could bring Naruto and Sakura closer in an unexpected way. For example, Sakura might start to defend Naruto more vocally, which would show Naruto that she really has his back.
It shows his vulnerability. Usually, Naruto is seen as a strong and determined character. But in this fanfiction, his depression over Sakura reveals that he has a soft side, especially when it comes to love. This adds a new layer to his character.
She might be confused at first. Sakura is used to Naruto being friendly and now his coldness would be a big change. She may start to question what she did wrong.
Sakura's character could develop in terms of her emotional intelligence. She might break free from her insecurities and jealousies. For instance, she realizes that her feelings for Sasuke were more of an infatuation based on his popularity rather than true love. So she focuses on building a deeper and more meaningful connection with Naruto. She learns to understand his dreams and goals better and supports him in a more effective way, which in turn makes her a more well - rounded and likable character.
Naruto might become more determined. With Sakura's death, he could see the harsh reality of the ninja world more clearly. It might make him more resolved to bring peace, as he has now lost someone important. He may also become more protective of his remaining friends, vowing not to let any more harm come to them.
Sakura might initially be confused. She has known Naruto for a long time and his sudden coldness would be unexpected. She may try to reach out to him to find out what's wrong.