It remained so for a long time. (2.1.97-101)After Ophelia's explanation, Polonius decided that Hamlet had gone mad. We can assume that this was Hamlet's plan: to make the castle known of its unsympathetic character. This is because he had already told his friends that he would start acting crazy, and then this scenario (in which he acted crazy) was the next time he was mentioned. Hamlet, who can be presumed intelligent because he is a prince and therefore educated, would have been intelligent enough to realize that Ophelia was very loyal to her father. He knew that Ophelia would inform her father of any event that happened, so he manipulated that loyalty. Having appeared to Ophelia in this frenzied state, Hamlet used his knowledge of her to further his plans to make the castle believe that he was