How did the author foreshadow that Miss Emily was crazy

When the ladies of the town went to the house to call on Miss Emily the day after her father's death, Miss Emily told them that her father was not dead. Finally, after three days and under threat of law and force, she allows her father to be buried. The townspeople did not say she was crazy then, because they assumed she had to "cling to that which had robbed her" of a married life, since her father had driven away her suitors.