Dark Naruto might become more rebellious. He could start to distance himself further from his family and focus on building his own power. Maybe he'll find allies outside of his family who understand and support him.
He could also go through a period of self - discovery. Instead of relying on his family's acceptance, he might explore his own identity and abilities more deeply. This could lead to him becoming stronger in his own right, but also more isolated. He might start to question the values and beliefs of his family as well.
In this kind of fanfiction, Naruto may also feel a great deal of sadness and confusion at first. However, as time goes on, he could use that pain as motivation. He might think that if his family won't recognize him, he'll make a name for himself in the ninja world in a way that they can't ignore. He could start taking on dangerous missions, not just for the village but also to show his family what they're missing out on.
In such a scenario, Naruto might initially feel sad and confused. But being Naruto, he could try to prove himself. He would focus on his ninja training even more, aiming to show his family that he is worthy of their attention through his strength and achievements.
In this kind of fanfic, Naruto might first feel a great deal of sadness. He could start to distance himself from his family. Maybe he focuses more on his training, pouring all his energy into becoming stronger so that he can prove himself without relying on his family's recognition.
Another reason could be jealousy. If Dark Naruto has certain unique abilities or powers that set him apart from the rest of the family, they may be jealous and rather than embrace him, they choose to ignore him. This would be a rather petty reason, but in the complex world of fanfiction, it's a possibility.
One possible reason could be that his newfound 'godlike' powers make his family feel estranged. They might not understand his sudden transformation and the magnitude of his power, which creates a sense of fear or discomfort, leading them to ignore him.
He may also seek solace in his friends. Since his family is neglecting him, Naruto would likely turn to his friends like Sasuke and Sakura. They become his new 'family' in a sense, providing the support and love he doesn't get at home. He shares his feelings with them and they encourage him to keep going, which helps him deal with the pain of neglect.
He might focus on his training more. By pouring all his energy into getting stronger, he can distract himself from the pain of family neglect. For example, he could spend long hours practicing new jutsu or improving his physical abilities.
Naruto might initially feel sad and confused. He could try to prove himself to his friends by working hard on his ninja skills. For example, he might train extra hours to show his friends that he is worthy of their attention.
He might feel very sad and lonely at first. Naruto has always craved family love and acceptance, so being ignored by them would be a huge blow.
He might try to prove himself. Naruto has always been a determined character. So he would likely strive to show his family that they are wrong about him. He could do this by achieving great things in the ninja world, like mastering new jutsus or completing difficult missions.