I dont know the history of Kristen but i like the idea for her to come back. And I liked Celeste's reaction to finding out who she was and then the fight idea was good.
I have got to say that you have a lot of talent when it comes to writing and creating your own stories and that the ending of this episode was awesome, i was able to picture how everyone was lying and the house with the car in the side of it...it was simply awesome