Well, in a role - reversed situation, their dynamic would flip. Naruto, being more like the original Sasuke, would be more aloof and focused on his own goals. Sasuke, like the original Naruto, would be the one desperate to have a true connection with Naruto. He would be the one to initiate their friendship and constantly be there for Naruto, even when Naruto pushed him away. Their relationship would be a struggle between Sasuke's need for friendship and Naruto's resistance to it due to his own personal demons.
The relationship would be very different. Instead of Naruto chasing after Sasuke to bring him back, it might be Sasuke trying to reach out to Naruto. Sasuke would be the more empathetic one, constantly trying to break through Naruto's cold exterior.
In this reversed scenario, Sasuke would likely be the more open - minded and friendly one, while Naruto would be the more reserved. Their relationship would start off with Sasuke being intrigued by Naruto's mystery. As time goes on, Sasuke would try to get closer to Naruto, but Naruto would be hesitant. Eventually, through Sasuke's perseverance, Naruto might start to open up, but it would be a slow process compared to their original relationship where Naruto was the one more eager to build a bond.