His little grumblings caused Sakura to raise a confused brow. She had no idea who this annoying female he was talking about was, but according to him she was a member of his 'team.' Why did he gather her if he hated her that much? "Itachi was here once," she suddenly blurted out, face passive. "He caused some trouble and then left, basically. That was a few months ago."
She didn't know why she said it but if he ever heard from someone else that he had been here, Sakura assumed it would be good for him to be prepared for the news. Given how paranoid he was about her word right now, she didn't want him to attack her in the future for having not said anything to him in the beginning.
When Sasuke held out his hand to her, Sakura stared at it for some time, looking back and forth from his hand to him, and back to his hand again, smiling a little and then grasping it with her own. "Truce..." Well, this had certainly gone far better than she could have hoped for.