Sorry for the delated response!
I hope to add blood magic at some point, no absolute promises though. I don't think the vampire gf will happen, at least not as initially planned, though.
Ashley is just.... Ashley. She puts on a heckuva act for many reasons. They're both teenage girls in a lot of ways.
Ina respects them both a lot, and is probably closer to friends with Kuril, but they don't see her as a friend either so much as a princess they care deeply for and want to support. Kuril is more like her cool war criminal uncle and Kandros is the cool genius billionaire uncle, lmao.