On one hand, it can strengthen his relationships. His friends might be inspired by his seemingly unwavering happiness. They might think that Naruto is so strong - mentally and emotionally - that they admire him more. For example, Sakura might see his happy face and feel more confident in their team.
However, it can also create some distance. Some characters who are closer to him might sense that he's faking it. They could feel that Naruto doesn't trust them enough to show his true feelings. For instance, Sasuke might notice the facade and feel a bit alienated as he expects Naruto to be more honest with him.
In the long run, if Naruto keeps pretending, it might lead to misunderstandings. People might expect him to always be happy and when he finally shows his real emotions, they could be shocked or not know how to react. This could potentially strain his relationships until he finally explains himself.
One reason could be to protect his friends. Naruto doesn't want his friends to worry about him, so he pretends to be happy even when he's facing difficulties. For example, when dealing with the threats from powerful enemies, he shows a happy face to keep his team's morale up.
His illiteracy might make his friends initially frustrated. For instance, Sasuke, who is more studious, could be impatient with Naruto's inability to read important messages. But as they grow, they might become more understanding.
It could strengthen their bond. By being interested in fanfiction about Naruto, Minato shows that he's deeply invested in Naruto's story, which Naruto might appreciate.
He also defends Sakura's honor. If someone in the village were to say something unkind about her or her work, Naruto would quickly step in and set them straight. This protects Sakura from negative emotions and helps keep her happy. Moreover, Naruto often shares his own experiences and lessons he's learned to inspire Sakura. He tells her about how he overcame difficulties in his training, which gives her the motivation to keep going in her own pursuits and be happy with her progress.
Well, Naruto being cold could really put a strain on his friendships. His friends like Sakura and Kakashi would be concerned. Sakura might try to use her medical skills to check if there's something physically wrong with him. And Kakashi could attempt to have heart - to - heart conversations to break through that cold exterior. Since Naruto is usually so warm - hearted, this change would be quite a shock to them all.
His apathy can strain his relationships. His friends might feel neglected. For instance, Sakura could be confused and hurt as Naruto no longer shows the same eagerness to be part of the team.
With Sasuke, it could either drive a wedge or bring them closer. If Sasuke blames himself for Naruto getting injured while protecting him, he might distance himself out of guilt. On the other hand, it could also make Sasuke realize how much Naruto means to him and he could become more committed to their friendship.
His insomnia might make him irritable with his family. He could snap at Hinata or his kids more easily, causing strain in his family relationships.
It might strengthen his relationship with Sasuke. For example, Naruto could use his time - control to understand Sasuke's pain better. He could go back to the time when Sasuke's clan was massacred and truly feel what Sasuke went through, which would make Sasuke more likely to open up to him and trust him more.
His relationship with the village would also change. The villagers, who have come to rely on Naruto as a hero, would be confused and perhaps a bit scared. Some might feel betrayed that he has isolated himself. But there could also be those who understand his need for solitude and wait patiently for his return.