Let It Rain

Melissa fell in love with him the first day back to highschool, he never paid much attention to her though. Even though he was a rude bastard, she still cared. After highschool she became an assassin, she became a cold hearted killer. When she is given her next target, her feelings and memories came back. When she pulled the picture out his face was starring back at her, his name was written on the bottom in red sharpie.

Which concluded that she had to murder her true love, Mathew Sanders.