She thought he didn't want her.
She thought she was going to lose him.
She thought that she didn't make him happy.
She thought he would find someone better.
She thought he wouldn't notice if she was gone.
She thought he was better off without her.
She thought he was talking to other girls.
She thought he didn't care about her.
She thought he didn't actually love her.
She thought she would be fine without him.
She thought she could move on.
She thought she could find someone else.
She thought she was an idiot.
She thought she was nothing.
She thought self harm would numb the pain.
She thought most of her thoughts were lies but they weren't.