Read it through once

Humph—Harriet’s ready wit! All the better. A man must be very much in love, indeed, to describe her so. Ah! Mr. Knightley, I wish you had the benefit of this; I think this would convince you. For once in your life you would be obliged to own yourself mistaken. An excellent charade indeed! and very much to the purpose. Things must come to a crisis soon now.”