S04E04: Love & Rocket

Love is in the air when Bender finds himself involved in a shipboard romance....with the ship. When the Professor upgrades the Planet Express spaceship's software with a sexy female voice (guest star Sigourney Weaver), Bender falls hopelessly in love. But when the ship discovers that Bender is unfaithful, she charts a course for self-destruction, and it's up to Fry and Leela to save the day.