Answer:
Getting what you want may not make you happy.
Step-by-step explanation:
Mr. Shiflet had just gotten married to Lucynell, the dumb daughter of an old woman named Lucynell. But then he abandoned her at an eatery and went on his way with the automobile which belonged to the old woman. Lucynell was asleep when he gave some money to the boy at the eatery for her food and went on his way.
Even so, he was still depressed while driving away. He wanted to fill his need for being responsible by taking along a stranded person or a hitchhiker in his car. The young man he helped however was ungrateful to him and this worsened his frustration.
He wished to be married, but marrying Lucynell never made him happy. This shows that at times getting what you want may not make you happy.