"You shall do marvelous Reynaldo,Before you visit him to make inquire of his behavior"
"My lord as i was sewing in my closet Lord Hamlet with doublet all unbraced no hat upon his head his stocking fouled ungartered and down gyved to his ankle pale as his shirt,his knees knocking each other and with a look so piteous in purport as if he had been loosed out of hell to speak of horrors-he comes before me."
"How now opehlia what is the matter"
"Mad for thy love ?"
My lord ,I do not know
Polonius sends his servant to Paris to see what Laertes really does, clearly showing Polonius doesn't really trust Laertes being in Paris.
Ophelia barges in and exclaims to her father that Hamlet looks crazy
Polonius takes this as why Hamlet is acting crazy because he believes Hamlet really love his daughter and shes been rejecting him