Sasuke would be deeply affected as well. He has a complex relationship with Sakura. He might withdraw into himself even more. He would probably be very angry, but his anger would be more of a cold, brooding kind. He would likely start his own investigation into her death, and depending on the circumstances, might take revenge in his own way, which could be quite brutal.
Both Naruto and Sasuke would also be reminded of their own mortality. Sakura's death could be a turning point for them. They might re - evaluate their lives and their goals. Naruto could become more determined to bring peace to the ninja world so that no more friends would have to die in vain. Sasuke might become more involved in the affairs of the village he once shunned, seeing the importance of protecting those around him after losing Sakura.
Naruto would be devastated. He's always been one to value his friends deeply. He might initially go into denial and then be filled with rage, vowing to find out who or what was responsible for her death and seek justice. He would also likely carry a great deal of guilt, thinking that he should have been able to prevent it.
Naruto might also try to remember Sakura in a positive way. He would cherish the memories they had together. He could start initiatives in the village in her name, like promoting medical ninja training more, since Sakura was a great medical ninja. He would slowly turn his grief into a force for good in the village.
Naruto would be devastated. Sasuke is his closest friend and rival. He would likely go into a state of deep mourning at first. He might isolate himself for a while, just trying to come to terms with the loss.
Sakura would probably be initially shocked and angry. She has always cared about Sasuke, and this betrayal would hit her hard. But she is also a strong - willed ninja. So, she would quickly gather her wits and start looking for ways to escape. She might try to use her knowledge of Sasuke's fighting style against him if she gets the chance.
Sakura would likely be devastated. Naruto has been her friend and teammate for a long time. His death would leave a huge void in her life, and she'd probably go through a long period of mourning.
Sakura would probably be furious at first. She is a strong - willed character. She might start yelling at Sasuke, demanding an explanation right away.
Sakura would be over the moon. She would blush deeply and look at Sasuke with so much love in her eyes. She might be at a loss for words for a moment, but then she would find her voice and tell Sasuke that she has been waiting for this moment her whole life. She would also feel a sense of pride that Sasuke has chosen her, after all they have been through. And she would immediately start thinking about how to share the good news with their friends, especially Naruto, who has been like a brother to her and has also been a part of their journey.
Sakura might be initially frustrated. She's used to Sasuke being in control, so seeing him drunk could be a bit of a shock. But then she'd probably feel a sense of protectiveness and try to sober him up.
With Naruto, it would be a huge shift. Naruto has always seen Sakura as a friend from Konoha. If she joins Akatsuki, Naruto would be confused and probably try to convince her to come back. Their relationship would become strained as they would be on opposite sides, at least initially. Naruto might see her as a lost friend that he needs to save.
Well, Naruto might be furious. He's always been protective of Sakura. He'd probably drop everything he's doing and go after Sasuke to rescue Sakura. Naruto has a strong sense of justice and loyalty, especially towards his friends. And Sakura is one of his closest friends, so he won't stand by and let her be in danger.
Sasuke might be in shock at first. He can't believe that Naruto is dying in his arms. He may feel a great sense of guilt, thinking that he could have done more to prevent it.