Board Thread:Show-Related Questions and Answers/@comment-31955135-20170508153002/@comment-5279400-20170510050945

She probably went kinda crazy in the Dark Realm. Other than that, it probably has to do with wanting to be with her family and/or the pain and suffering the Blue Fairy put her through. I have another question, why did the Blue Fairy have to banish the Black Fairy in the first place? Just because she severed Rumplestiltskin's fate of being the Savior and becoming a hero? That can't just be it, there has to more right?