Sakura just wanted to hear Sasuke say it himself, so when he apologised, she asked what for. She wasn’t going to let him off the hook that easily, she wanted to explicitly hear it. And when he clarified that it was for everything:

Sakura was just like, “you’re damn right”!:

Sakura was mad, obviously. But the joy and sheer relief that the Sasuke they knew had finally been salvaged, vastly overpowered any lingering anger she may have had at the trouble that he caused. Thus, she just couldn’t stop the tears from flowing:

It only took them around 4 ½ years, but Sasuke was finally back ^_^