(Doctors hate him!) The secret to Aeiou's guy levels being off the charts is that he doesn't have a gender to begin with due to being above gender as a mighty powerful machine angel bird thing

His mistakes over the course of the story at the moment hinge solely on his inexperience and being way too trusting of everyone around him, and he gets burnt over and over because he refuses to stop believing in the good in people. His initial divorce from Donk was because of communication and after learning and growing they're together again, so I really think Aeiou as a character hinges on having enough chances to get it right, because in organic situations he usually never gets it right the first time and that can be incredibly frustrating to those who don't have a lot of patience for him. He also fucked with the fabric of reality and dimensional travel and may or may not have been lost in the void forever and assumed dead. Schrödinger's shape has a lot of problems but they range from "Someone said I was annoying :(" to "I accidentally pissed god off and he took my halo to spite me"