It's best to think of the school shooting here as a MacGuffin. (Or is this a secretly "pro-life" and/or religious film? Even so....) Constant foreboding/fear of danger (i.e. anxiety, hysteria), and nostalgia/regret/guilt (i.e. fear of living a wasted life), are of course typical features of the bourgeois housewife (and presenting slide-shows, I mean teaching art history, especially the Impressionists, doesn't at all make her any less a bourgeois housewife)--and not only the housewife. To say nothing of "living" like a "survivor"/victim/ghost (or whatever). Or is it that the teenager chooses death rather than the "perfect" (unattainable? fantasy?) bourgeois life? But why should anyone think those were the only available options?!