Going Unnoticed, But Not by Him

Crystal had always been the kind of girl who was quiet, shy, and didn't like to talk much. But, what happens if there was a reason behind that?       There had been an event in her life that caused everything she knew to be forgotten, and gone for good, as the doctors had said. She always knew about this, though her parent were always trying to keep it away from her. - Not wanting to hurt her. So, she always pretended she didn't know, just for them.       You see, before all that happened, she had many friends. Many friends she thought would always stick by her side, not just look at her everyday in the hallway, and turn their whole head around; completely ignoring her. So, after that, she changed her views about "friends", and goes from being a completely sociable person - to a loner.      Well, what will happen when Crystal meets the guy whose always been watching over her? ---      Not from the heavens; a guardian angel. But, a spirit of the dead; a ghost.