Board Thread:General Discussion/@comment-28260770-20160420195541/@comment-25926288-20160420201335

Belle said that once they rejected and decided to hold onto darkness, TLK wouldn't ever work.

First they said magic worked differently (aka lazy writing because there was no noticeable difference).

Now, it's pretty much because Rumple choose power over love and still to this day, he chooses power over love. I think he might have been able to do it with Baelfire, but Belle, nope.