Board Thread:General Discussion/@comment-24674051-20140422161814/@comment-5834856-20140424130634

A thought crossed my mind yesterday. Despite everything he did to prevent it, Rumple couldn't change the fact that Baelfire grew up fatherless, In order to see Bae growing up he deserted, becoming the Dark One. Becoming the Dark One resulted in Bae loosing his father.

Transferring her abilities to Rumple the Seer told him:

The future is a puzzle. With many pieces to be sorted. In time you'll seperate what can be from what will be.

Maybe turning back the time wouldn't help Zelena because certain events (deaths and births, probably) happen anyway. Certain events are inevitable.