Final answer:
The quoted text provided does not give context to Don Pedro's thoughts about Claudio, as it does not relate to Shakespeare's play where these characters are from, thus an accurate answer cannot be provided without the correct context.
Step-by-step explanation:
The extract from the work in the question does not directly reference Don Pedro or Claudio from Shakespeare's Much Ado About Nothing, so it's difficult to provide an accurate answer about Don Pedro's reasoning regarding Claudio's movements without the correct context. The quoted materials do not pertain to the play, making it tough to deduce why Don Pedro thinks Claudio should not go back with him based on the given excerpts. It's possible there's been a mix-up or misunderstanding with the question's details.