Elsa and Paige
"Are you? You certainly should! I would love to see your work." Elsa's expression softened at the mention of her sister, and she nodded. "I seem to be fairing well. Her departure was difficult, but I suspect that it would be for the best. I know that we do well past the point in her life in which she had arrived from, so I won't worry."
That was certainly a benefit of coming from a different place in their history. Elsa knew that Anna was thriving as well as Arendelle and that she, herself, would still be there in some way for her sister.