I’m guessing that in “The Thing You Love Most” Regina may not have been referring to the Aurora we saw in “Broken”. Regina only referred to “…that sleeping beauty [who] got the best of you.” Aurora’s statement about Maleficent’s conflict with her mother makes me think that the “sleeping beauty” Regina referred to may have been Aurora’s mother.
That’s Right!!! She did mention that Maleficent had come after her and her mother! That would be a neater fit to this whole story!