Board Thread:Spoilers!/@comment-24304025-20150202171011/@comment-25602483-20150302225907

Maybe Zelena was able to warped back in time. Glinda said that the pendant is kinda Zelena's life because it stores her magic in it. Its possible that when the portal opened, Zelena magic was transported into the past and somehow returned and resided into the past Zelena with her future memories intacted, which is why it kinda make sense that she would have some flashback with the QOD, she was probably in on it when they are planning to get their happy ending. The smirk though, she kinda does that with some of her scene, I kinda noticed that she does that with her mouth a lot. I can't explain it but she did do it multiple times.