In act 3 scene 1, of shakespeare's Hamlet, why does Hamlet speak rudely to Ophelia, telling her "get thee to the nunnery"?

Oh my, Shakespeare's Hamlet is one of my all time favorites.

It definitely takes some time getting used to it and one has to re read it many times to get a full understanding.

During the time period, the nunnery was where they sent loose women or those who had frequent encounters of a sexual nature.

So Hamlet basically called Ophelia a rude name for someone who sleeps around.