The line that says „heaving a sigh and loudly exhaling” (B) contains satage directions that reveal emotion. By this line, you can notice maybe the tiredness of the woman after his son diboyed her. Even though she previously told him what should he do, or in this case not do, the guy decided to do it anyways leading it into unpleasant results. The woman doing this sigh and her notorious exhaling, she might be dissapointed as much as she is tired.
