Let's revive some threads, shall we?

Deirdre drives Ashla up the wall!!!

When not relying solely on her physical powess, Felicity can think very cleverly and shrewdly.

Ashla has zero logic or common sense!

There are several notable differences between Ashla and Ayleth, despite them being the same single person and consciousness (no DID here!) Ayleth was initially just a defense mechanism, but up until she remeets Felicity it's her major surface persona. Ayleth still comes out, and despite being one in the same with Ashla still has those key differences... It's weird. And complicated. Still no DID.

Felicity actually doesn't have daddy issues. She never had a prominent mother figure, but her uncle and cousin were enough for her.

None of my characters ever had legit PTSD. If any character remotely does, it's Ashla but it's still a big stretch. Felicity had post traumatic stress after Ayleth (just. Ayleth.) and having her family die, but recovered. Deirdre is way too proactive to have any sort of PTSD.

Deirdre self taught herself reading, writing, and math. Her father helped sometimes, but that was it.

Felicity has a higher metabolism than the average person. She majorly eats high protein, high calorie foods. She still won't eat her veggies!