What Zero Could've Been

[Zanarkand-Ronso]

especially with the disdain and indifference with which she treats the men who dare to commit the sin of wanting to get closer to her or in Runar’s case, making the mistake of caring about her in a deep way.

.....you must really like Magnai if you feel THIS bad for him being called Little Sun.
And what mistake? Y'shtola acknowledged his love for her, and even said she would work on a way to perfect Dimensional Travel, pretty much saying she will try to find a way back to the 1st, and even to him.