The plot just doesn't make sense.
"Aria, you are dead, but I couldn't accept it, so I created a creepy and death threatening fictional version of your favorite place to bring you back to life and threaten your new life at every corner, I hope you appreciate it."
Aaaaaw, such a good friend! Why need enemies when having such friends?
See? That doesn't make sense. If you create a world to bring back someone dear to life, then you obviously don't fill it with death traps to kill her in every room!
The plot would actually make sense if it was:
"Aria, I hate you, so I created a fictional world to torture you and to kill you."
Wouldn't that make more sense now?