Vada seems to have guilt, not just at surviving, but at the incident as a whole, feeling like she should have been able to predict or stop the shooting somehow.
Fitch is recognizable from the shows This Is Us, Atypical, and Mixed-ish, as well as the Disney+ film Secret Society of Second-Born Royals.
This baffles Vada's best friend Nick who expects them to heal together, but Vada and Mia and Quentin, to some extent are the only ones who know their specific experience of the shooting.
I wasn't interested in another gun-violence teen drama.
There's the anger at the shooter, but also anger at herself, for not realizing how significant one person with a gun could be.