Princess of the Heart

In this comic her history is different than her original. She is not related to Celestia and Luna.

Cadance is the descended of the First Queen of the Crystal Empire, after the empire fell by Sombra her ancestors fled to the Country of Equestria where Queen Faust offer them Sanctuary.

When Cadance ascended into Goddess level she turned down becoming Immortal as she does not wish to outlive those she loves, not her husband or daughter or her friends.

She too was happy to hear that Spike was still alive and wonders why he couldn't come back yet.