Oh... I was expecting a DUI, then author threw a curve ball....
Dude!, how can one relieve her guilt when first, there´s no guilt to atone for and second she feels she has all the guilt
Tell her she had a tiny bit of guilt (she didn´t), then you validate what she feels and all her suvivor´s guilt gets amplified
Tell her she had no guilt and then you don´t understand and she builds her walls again
Tell her that her dad was at fault... and now the walls have cannons aiming at you