Board Thread:Spoilers!/@comment-1916997-20150313202428/@comment-1894786-20150509005654

Before Bex made that interview and made me realize she was right, I actually thought Zelena would sacrifice her own baby (innocence) and Belle (intelligence, resilience and bravery) in order to hurt both Rumple and Robin (and by extension Regina) to go back in time. Oops.

But yeah, presumably Zelena's adoptive mother was an angel to her, which is why she sought out Cora, hoping Cora would be the same, and we never got that on-screen, so Zelena just came off as very one-dimensionally envious.