Nellie went up to her room.
Unsurprisingly, it was completely different than it had been when she had left it that morning. The walls were pink, as were the covers on her bed. She looked at the bookshelf - most of it was classical literature, none of the badly written war stories and sci-fi that her old self had preferred. An iPod was sitting on top of the desk. Her old self had never had one of those! She picked it up and turned it on. Looking at the play list, she saw that her new self's musical tastes were a good deal more conservative.
She set her pack down on the bed. A teddy bear sat next to the pillow. Nellie picked it up. She'd never seen it before, and yet she recognized it as something she'd had for her whole life. She remembered getting it on her fifth birthday, going to one of those "build-a-bear" places. No, that wasn't right! On her fifth birthday, she had done something else...she had... It was gone. Her memory of her old self's - the one that had been a boy - fifth birthday had been overwritten, replaced by a new memory.
Nellie sat down at her desk and turned on her computer. She knew that once she had forgotten her old life, any chance of reversing what had happened to her would be gone. She was determined to go on-line and research anything to do with magic or transformation. However, to her dismay she found herself compelled to do homework, instead. When she was able to go on-line, it was only to consult with Wendy about schoolwork. After two hours of hard work, she had all of her assignments ready for the next day - something that would have been unthinkable for her old self!
When she was finally done, she found herself going on Facebook and chatting with her friends. Nellie had a lot more friends than her old self had had. Some names he would have recognized, others would have been completely new to him. Try as she might, Nellie could not force herself to do anything that was "out of character" for her new self. Eventually, Molly called her from downstairs:
"Nellie, could you come down and set the table, please? It's almost time for dinner."
Nellie raced to obey her mother without question. Over the next few days, her memories of her previous life faded, replaced by new memories of her life as Nellie. By the time of her date with Bill that Saturday night, all memory that she had ever been anyone other than Nellie Johnson was gone from her mind.