It's the framing of it that bothers me. The progressive order is debatable, but it's the way the modifiers all connect and the way we never touch on the aromanticism again after this point. Using "possibly aromantic" as one of the four modifiers on girlfriend and having all of the other three relate explicitly to how Callie's othered and offputting to POV character June. It's framing aromanticism as part of that group by proxy, There's nothing inherently wrong with being aromantic and nonhuman-- as an otherkin aromantic myself, I fully get being both!! But there's a difference between happening to be both and implicitly framing aromanticism as inherently nonhuman, which is what the epilogues do by lumping it in with other explicitly nonhuman modifiers on girlfriend. Also, still a weird look to have your only non-satire explicitly aromantic character's aromanticism revealed as a modifier on them being someone else's romantic partner, and to then continually and consistently discuss said character near-exclusively within the context of that romantic relationship without ever discussing how the aromanticism interacts with it.