Read it through once

Elinor, though never less disposed to speak than at that moment, obliged herself to answer such an attack as this, and, therefore, trying to smile, replied, "And have you really, Ma'am, talked yourself into a persuasion of my sister's being engaged to Mr. Willoughby? I thought it had been only a joke, but so serious a question seems to imply more; and I must beg, therefore, that you will not deceive yourself any longer. I do assure you that nothing would surprise me more than to hear of their being going to be married."