Final answer:
The question pertains to Shakespeare's play 'Much Ado About Nothing,' but the supplied excerpts are from different literary works and do not provide the needed details on Don Pedro's remarks to answer the question about Beatrice's affections for Benedick.
Step-by-step explanation:
The question refers to a scene in William Shakespeare's play Much Ado About Nothing, where Don Pedro, along with Claudio and Leonato, plays a trick on Benedick, making him believe that Beatrice is in love with him. This scene is one of the comedic high points of the play, relying on eavesdropping and irony to advance the romantic plot between Beatrice and Benedick.
However, since the excerpts provided do not pertain to Shakespeare's play, but rather seem to be from various novels or other literary works, the specifics of what Don Pedro says to convince Benedick of Beatrice's love are not available here. Therefore, I'm unable to provide the three things Don Pedro says about Beatrice, as they are not included within the given text excerpts.