In some fanfictions, Sasuke changes his cold attitude towards Sakura. He realizes her importance in his life. He starts to communicate better with her, sharing his thoughts and feelings, which he never did before. This change makes their relationship grow stronger as they get to know each other better on an emotional level.
In these fanfictions, Sasuke could develop a stronger sense of purpose that involves Sakura. Instead of being solely focused on his own goals or revenge, he starts to think about building a future with Sakura. His character might become more stable and less prone to impulsive actions as he has Sakura as a positive influence in his life.
The relationship often becomes more strained. Sasuke's punishment can make Sakura feel resentful at first. But over time, it can also lead to her becoming more independent as she tries to prove herself to him.
Sakura might develop into a more confident and assertive person. After the war, she has proven herself as a strong kunoichi, and with Sasuke by her side, she could grow even more. Sasuke, on the other hand, would develop by learning to trust and love again. He has been through so much, but with Sakura's love and support, he could become a more stable and caring person.
Their relationship could become stronger. With a son, they have a new bond that ties them together even more. They might communicate more often and share their parenting experiences. They could also rely on each other more in terms of protecting their family.
Sasuke might become more empathetic. After the war, he has seen the destruction and pain it caused. With Sakura by his side, he could learn to express his emotions better. Sakura, too, could become more confident. She has proven herself during the war, and now she can continue to grow, especially in her relationship with Sasuke.
He could also become more vengeful. If Sakura's death was caused by an enemy, Sasuke would stop at nothing to avenge her. His focus would shift solely to seeking revenge, and his already formidable skills would be honed even further in his quest for retribution.
Their relationship could become more of a partnership. After the war, they both understand the importance of peace. So, Sasuke and Naruto might work together on various projects for the betterment of the ninja world. For example, they could start joint training programs for young ninjas from different villages.
It could become more strained. Sasuke might start to avoid Sakura even more after snapping at her. This would make Sakura sad and she might start to question her relationship with him.
The relationship might become more equal. Since Sakura is stronger, Sasuke can't look down on her as he might have in the original story. They could become more like true partners, respecting each other's abilities.
Their relationship could become more strained. Sakura might be afraid of Sasuke after the bite, creating distance between them. Sasuke, on the other hand, could be filled with regret and try to avoid her, which would further complicate their relationship.