The fact that Johnny and Gyro's character development is shown through how they positively influence the other. Knowing each other is what made them develop into better, or at least more emotionally healthy, people
I'm sorry, I can't get over this. His gut instinct is to be selfish, but he immediately regrets it when reality hits and Gyro disappears. And without a second thought, Johnny gives up his only goal for Gyro because the latter is just that important to him. I just can't 😭
I don't know why I find panels where Gyro is in front and saying stuff while Johnny is lurking behind (usually with the same or grumpier expression as Gyro) so amusing, but I do 😂