begins shutting down the ship's brain by popping the tops of its carbonated logic unit. While searching the conversation hearts, Fry notices that Leela's oxygen supply is critically low. He hooks her mask up to his tank to keep her alive. Completely oblivious to this sacrifice, Leela finishes shutting down the ship's artificial intelligence, returning every system to normal. She then finds Fry unresponsive due to the lack of oxygen. Leela gives him mouth-to-mouth resuscitation. Fry awakens and coughs up a candy heart with the message, "U leave me breathless"; the two smile and wish each other a Happy Valentine's Day. Bender emerges, unaware that a little of the ship's program is still merged with his. Leela decides to dump the undelivered hearts into the quasar instead of cleaning them up. The hearts vaporize, producing a romantic fuchsia-colored radiation that is harmless on Earth and visible during Valentine's Day, but that destroys many planets en route. Couples around Earth (and Zoidberg, who is inexplicably narrating this section) happily gaze at the beautiful space phenomena. Production Lucy Liu's lines in this episode were recorded during the production of the season three episode "I Dated a Robot". When recording Liu's lines for "I Dated a Robot", the staff had her record around six generic lines, with the intent that at least one of them would be used as a throwaway joke in a future episode. Cultural references The episode's title is a reference to the alternative comic Love and Rockets. The ending sequences with the quasar is a reference to the ending sequence of 2010: The Year We Make Contact, in which Jupiter explodes and everyone around the world gazes at the new sun in the sky. There are a handful of references to 2001: A Space Odyssey within the episode. The Planet Express Ship's AI resembles HAL 9000 in appearance. The song "Daisy Bell" is sung by Bender during the first montage for his love of the ship. "Daisy Bell" was the earliest memory by the HAL 9000, sung in 2001 by HAL while he is being deactivated by Bowman. The Planet Express Ship also gives a nod to HAL's famous line, "I'm sorry, Dave. I'm afraid I can't do that," and also laments over being unable to read lips when Fry, Leela and Bender escape to a place where the Planet Express Ship can't hear them. Lrrr and Ndnd are