The quote from the text that least shows that the narrator feels nervous and unexcited about entering frog-sleep and leaving Manchester Prime is "The idea of leaving Manchester Prime, while exciting, was tempered by the knowledge that I would be entering a dream-like state for an indeterminate amount of time." This quote shows that the narrator is excited about the prospect of leaving Manchester Prime, but is aware of the potential risks and is not overly enthusiastic about the prospect.