Board Thread:Spoilers!/@comment-24674051-20160625215037/@comment-24674051-20160817173001

I think 3B (and I'm assuming that you are refering to the scene in the Finale) was triggered by another event that I found to be out of character, and that was Snow's willingness to kill the EQ (by turning her into a bug and probably squishing her). Once Snow showed that she was willing to kill the Queen, the Queen decided that she could kill Snow.

However, the discussion of whether or not Regina could bring herself to kill Snow is starting to veer away from the current topic (though the discussion itself would be a great topic in it's own right). Obviously, we may find out something that Regina set in motion that is intended to be Snow's downfall, but let's try to avoid going down this rabbit hole too far.