Read the excerpt from act 3 of a doll's house. mrs. linde: we have a great deal to talk about. krogstad: i shouldn't have thought so. mrs. linde: no, you have never properly understood me. krogstad: was there anything else to understand except what was obvious to all the world—a heartless woman jilts a man when a more lucrative chance turns up? mrs. linde: do you believe i am as absolutely heartless as all that? and do you believe that i did it with a light heart? krogstad: didn't you? mrs. linde: nils, did you really think that? krogstad: if it were as you say, why did you write to me as you did at the time? mrs. linde: i could do nothing else. as i had to break with you, it was my duty also to put an end to all that you felt for me. krogstad [wringing his hands]. so that was it. and all this—only for the sake of money! mrs. linde: you must not forget that i had a mother and two little brothers. we couldn't wait for you, nils; your prospects seemed hopeless then. krogstad: that may be so, but you had no right to throw me over for anyone else's sake. mrs. linde: indeed, i don't know. many a time did i ask myself if i had the right to do it. how does ibsen use dramatic irony to heighten suspense in this scene?