Iliana
It's a rather sensitive matter. My heart, is dying. It is being overcome by darkness. And, when it dies, all that is left will be The Dark One. Rumpelstiltskin will be dead, but this body will still move. Just, consumed by darkness. No light left at all.
Trust me, no one will want that day to come. Whatever they say about me now. When this happens, it will be infinately worse.
I believe that light magic might be able to stave off the darkness.