The optimistic feeling continued because Tony was actually helping his father dress him unlike the previous dressings of Tony which were usually wrestling matches. Dad was so impressed with Tony's behavior that he gave him a hug. In fact, they together had a long hug and Dad was feeling warm all over. Moments of parent--child affection are glorious.
But then Tony told Dad, in his soft pleading way of saying he wanted something (as opposed to his shrill whining way), that he didn't want to go to school.
Well. You can't expect to get everything you desire in one quick go of it and so the improvement was still a great thing to behold, even if hopes were dashed. But they were only dashed ever so slightly.