The War In Angels

Two and a half years later and Lea is back. And she's different.
Gone is the lazy, hot-headed, overprotective, silver haired little girl and in her place is a robot. No emotions, all power, spending every bit of her training on making sure that he never has leverage over her again.
But now, she's back in Konoha, and all of her training will soon be for naught. Back with her old friends, Lea is not only hounded by her past and her present, but also by the rush of feelings from being around them again, after years of training to become as emotionless as possible.
And just when she thinks she may be able to endure, Sasuke shows up...