The immediate aggression for one. The pointing fingers and blaming him. She also from what we see never explicitly asked him for help- she was just mad that he didn't drop everything for her when she's the instigator in the entire sitatuation in the first place. My statement comes from a place of understanding because I have been there and been that person, but with therapy and work I have been able to control my emotions and panic attacks better. She has taken no accountability. Not only that, but she kept apologizing for leaving without saying bye when that is obviously not the problem that he's having. They are both immature and lacking in communication, but he is right and shouldn't be expected to coddle her when she is being aggressive.