You can see her ears.

This begs the question of whether or not Nabateans share the pointy ears of the Manaketes.

Concept Art of Flayn and Seteth, as well as the CG of Rhea being rescued in the Verdant Wind and Silver Snow routes, show that they have pointy ears behind their long hair, but not to the extent of Sothis, so at least they can hide their ears with ease. There's plenty of questions about the Nabateans that fans are asking, but at the very lease they are very similar to Manaketes, just that their Dragonstones also function as their hearts.