I'm ace and have been involved in ace communities for over 15 years now--I choose not to label my romantic orientation anymore (long story short: I experience romantic love and don't consider myself aro, but clearly I'm so ace that other people consistently fail to interpret me that way: I'm constantly being told how beautifully platonic my love is even though I experience it as romance.) so "ace" is my full identity as of right now. But I completely understood the perspective portrayed here. I also struggled with identifying with or understanding "romantic love" in movies and songs because they fail to capture my feelings.
Maybe Avery is a bit of a caricature but... in a way that also contributes to her nuance. Sometimes people think they're in love when really they're just infatuated or physically attracted. Either way, I think she shows plenty of food for thought in what her emotional needs drive her to do.