What changed about the narrator at the beginning of the chapter?

At the age of ten, Billy is stricken with puppy love, the real kind, terribly in need of a dog. To make matters worse, he insists that he must have two dogs, and they must be "coon hounds." His father offers a collie puppy, but that offer is rejected. The family cannot afford to buy hounds, however, and his mama confirms Papa's decision.