As for Brittany not being able to be a normal 7th-grader, I agree to some extent, but I also think that the best thing for her may be to return to normalcy as quickly as possible while working on the deeper issues with therapy/family. More than anything she is probably craving nothing more than being "normal" right now. I really don't know if she sees the big picture of what all has happened - the national media, the grooming, etc - just all of it, kwim?
Although by far a different experience, a girl in our middle school ran off with the circus. Huge deal in our little town. Her parents tracked her down after several days and she came back. Folks gawked at first but then life was back to normal again. I think the good thing is that other 7th-graders - and maybe Brittany as well - don't realize the many crimes that were committed against Brittany. That a grown man really took advantage of her in so many ways... So to them, the whole experience will probably blow over more quickly than it will with adults.
What I am trying to say is that there is a good chance that with the correct support, Brittany has alot of potential to be a normal 7th-grader again - and 8th-grader, 9th-grader, etc. No one wants to live their life as a victim forever, and I bet she eventually gets to that point.