Not only would it be more interesting, it just wouldn't make sense for her to "snap out of it" and have a happy ending. She is too far gone to be saved with some magic snap of the fingers. I didn't notice it until the 2nd time I ran the dungeon, but in the last boss arena the entire floor is COVERED in letters that spell Avere. They are....everywhere. Even the glyphs that light up if you let the adds reach Edda in the middle spell Avere.
I assume Edda carved his name into every ilm of that stone platform, suggesting that her psychosis is far beyond being saved. She is obsessed, and her obsession is the only thing continuing to drive her....
I absolutely love this storyline and would definitely like to see it progressed in this fashion:
This is a fantastic idea.