With his friends in the Hidden Leaf, Naruto would become more distant. His new attitude would make them question his loyalty and motives. Sakura, who has always cared for Naruto, would be disappointed and confused. She might try to bring back the old Naruto, but his Madara - like attitude would make him resist her attempts. His relationships with his sensei, like Kakashi, would also be strained as Kakashi would not be able to understand or tolerate Naruto's new, more extreme views.
Well, with his friends, Naruto's relationships would change significantly. They would be confused and concerned. Sakura might try to use her medical skills to see if there's something physically wrong with Naruto that's making him act like a mini Madara. Kakashi would be on high alert, not knowing if Naruto could be a threat. Naruto's relationship with the younger generation, like Boruto and the others, would also be affected. They would look at him differently, and Naruto would have to deal with their disappointment and fear. He would have to work hard to regain their trust and show that he's still the Naruto they know deep down.
With his friends in Konoha, they would be initially worried. But those who truly know Naruto, like Shikamaru and Sakura, would support him in his decision. They would help him adjust to not having that power and encourage him to find his own path again. However, some of the younger ninjas who looked up to Naruto because of his great power might be disappointed at first.
In a Naruto fanfiction where he has Madara's attitude, he could become more power - hungry. Madara was always seeking power to reshape the world according to his ideals. Naruto might start to view the tailed beasts not as friends but as tools for greater power. He could try to gather more chakra and perhaps even attempt to unlock new forms of power that are more in line with Madara's dark and ambitious nature, which would shock his comrades and enemies alike.
Some of his friends might be a bit more cautious around him. For example, Sasuke might be more on guard, as he has a history with the Uchiha and Madara's power is something he'd be very aware of. But Naruto would still try to keep their friendship intact.
With Kakashi, Naruto's relationship could change a lot. Kakashi has always been a mentor to Naruto. But if Naruto is Madara's grandson, Kakashi might be more cautious. He has a history with the Uchiha and Madara in particular. So, he could be more watchful of Naruto, which might make Naruto feel a bit alienated from his old teacher. At the same time, Kakashi could also see it as an opportunity to guide Naruto in a way that prevents him from going down Madara's dark path.
If Naruto had Madara's memories in fanfiction, his relationships would shift in multiple ways. With his friends, he might seem a bit more distant at first as he tries to process Madara's often - solitary and distrustful view of others. However, he'd also be more protective, using Madara's knowledge of the world's dangers. His relationship with the village elders could become more strained. Since Madara had a negative view of Konoha's leadership at times, Naruto might start to question some of their decisions more, based on those memories.
His relationship with Sasuke would be really interesting. Since Sasuke has his own complex connection to the Uchiha clan and Madara, Naruto becoming a Madara fan could either bring them closer together in understanding the Uchiha's past or drive them further apart if Sasuke doesn't agree with Naruto's new - found admiration. Maybe Naruto would start to push Sasuke towards a more 'Madara - like' view of power and revenge.
With Kakashi, Kakashi would be extremely cautious around Naruto. He would be constantly on guard, worried that Naruto might inherit some of Fem Madara's more dangerous tendencies. Naruto would have to prove his loyalty and good intentions to Kakashi over time.
Well, his relationship with Kakashi would change significantly. Kakashi, being Naruto's mentor, would be extremely worried about Naruto. He would constantly be on guard, watching for any signs of Madara's influence on Naruto. Naruto, on the other hand, might feel a bit distanced from Kakashi as he tries to deal with this new reality on his own. With Sakura, she might be torn between her loyalty to Naruto and her fear of what Madara could do. And his relationship with the other villages would be strained. They might see Naruto as a ticking time bomb and start to isolate Konoha because of it.
His relationship with Sasuke would likely be affected. Since Sasuke has a connection to the Uchiha and Naruto now has Madara's power, there could be a new dynamic. Sasuke might be both wary and intrigued by Naruto's new abilities. Naruto's relationship with the Hidden Leaf Village would also change. People would view him with a mix of awe and fear. The elders might be more cautious around him, while the younger generation would look up to him even more.