I went back to the boneyard, I didn't see her anywhere. The wiki says you can return to the Soul Carin and she comes back to the Castle & plants flowers etc in the courtyard.

Forum search showed a post of someone saying she has a house, I am guessing it is in the Soul Carin?

I found her in the place where the barrier was when you first go to the soul cairn to look for her.

Yea same here I didnt see her... Maybe she is there at certain times of day