"The Diner" is a descent into stalker territory, a feverish daydream where the lines between obsession and affection blur into something sinister. Billie Eilish dives into the mind of a troubled soul, one who sees breaking and entering as a prelude to wedded bliss. The lyrics capture the unsettling reality of those who mistake manic infatuation for love. Is this a commentary on the crazed side of fandom, a twisted ex, or perhaps even a reflection of Eilish's own anxieties? The beauty (or terror) of the song lies in its ambiguity.

The diner setting might seem like a random choice at first, but it ties back to Hit Me Hard and Soft's overarching theme of food as a metaphor for desire. This connection is particularly clear on "Lunch," the lead single from the album.

The song ends with the phone number of the stalking victim: 310-807-3956. When called, the number plays a recording of Eilish saying "hello" and promising to call back. This artistic choice has divided fans, with some finding it uncomfortably voyeuristic and others appreciating the boldness.