Before setting out once again on my discussion of “Love in the Time of Cholera,” I should probably issue, belatedly, a spoiler alert. Beware! “Love in the Time of Cholera” begins with Dr. Urbino going to the house of his old friend Jeremiah de Saint Amour, who has poisoned himself and left Dr. Urbino an eleven-page letter. The letter contains shocking revelations and directs Dr. Urbino to go to a particular house in the city. There he is greeted by a woman he recognizes as Je