 In the final fifth-season episode "The Countdown Reflection", Sheldon takes Amy's hand as Howard is launched into space.In the sixth season first episode "The Date Night Variable", after a dinner in which Sheldon fails to live up to this expectation, Amy gives Sheldon an ultimatum that their relationship is over unless he tells her something from his heart.Amy accepts Sheldon's romantic speech even after learning that it is a line from the first Spider-Man movie.