Songfacts®:

• Here, Billie Eilish is addressing an ex, who though easy on the eyes doesn't have an attractive personality. The songstress is taking control of the situation and separating herself from the toxic dude. Eilish tells him she "didn't change her number" but is just ignoring his calls.
• Eilish references two real-life people, implying that the guy she's singing of is an actual person she dumped:
  
  Laura said I should be nicer
  But not to you
  
  Laura Ramsay is Billie Eilish's personal assistant. The pop star's managing team hired her in April 2019 to go on tour with Eilish and be the point of contact between them. Billie admits Laura has told her to be "nicer" to people, but being nice to her former boyfriend is going a step too far.
  
  I should have left when Drew
  Said you were bad news
  
  Drew is one of Billie's best friends from childhood. She feels a tinge of guilt for not listening to his warning about the love interest.
• When Eilish first wrote the song she titled it "Laura" after the line referencing her PA.
• Eilish told Spotify she loves this song, as it's about having gone past the point of no return in the relationship and he can't get her anymore. She said: "Where it's like, 'I don't have sympathy for you anymore. You got me at first but I don't care now,' it's really that and that only. Like your last straw and I am confident in this being the last straw. Don't get me mad because I will scream."
• Eilish's brother and usual collaborator, Finneas O'Connell, produced this soulful slow jam. He incorporates some growls from his sister's beloved pit bull, Shark, to add some texture to Billie's snarling about her ex. Finneas has form for sourcing household noises to add to the song's feel; on "You Should See Me in a Crown," for instance, he incorporates a recording of their father sharpening knives.