What are two events in "Winter Dreams" that demonstrate the effects of Judy’s casual decisions or behavior on Dexter’s life?

From the time he first meets Judy Jones, Dexter's life is
determined by what she represents to him--the romance of wealth, beauty, glamour, and
excitement. He first meets her when she is a spoiled child about eleven years old, and
he is fourteen, caddying at the Sherry Island country club. The difference between their
social classes is evident. With her new golf clubs and her "white linen nurse," Judy is
obviously the daughter of a wealthy club member.

Dexter is
aware of her beauty, knowing she would become very beautiful in time. He finds her
intriguing; even her spoiled behavior is amusing to him, making him laugh without
realizing it. It is at that moment that Judy calls to him: "Boy!" Dexter stops in his
tracks:

Beyond
question he was addressed. Not only that, but he was treated to that absurd smile, that
preposterous smile--the memory of which at least a dozen men were to carry into middle
age.

As a result of this
encounter with Judy, Dexter quits his job that very day. It is an enormous decision for
him, one that frightened him; coming from a poor family, Dexter needed the money he
earned caddying at the club during the summers. His impulsive decision to quit he
attributed to having received "a strong emotional shock." Judy's rich life and her
addressing him as a servant had reminded him of his own status, and he rejected
it.

Years later he returns to Sherry Island as a wealthy
young man and falls into a summer romance with Judy. She breaks his heart. Dexter
eventually gives up the idea of her and becomes engaged to another woman, Irene
Scheerer. One evening when Irene could not go out with him, Dexter goes alone to a dance
where he encounters Judy again. After reminiscing, they leave together, and Dexter
drives her home. Judy cries, telling Dexter she would like to marry him. "I'll be so
beautiful for you, Dexter," she says. His reaction is one of emotional
intensity:

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Then a perfect wave of emotion washed over him,
carrying off with it a sediment of wisdom, of convention, of doubt, of honor. This was
his girl who was speaking, his own, his beautiful, his
pride.

When Judy invites him
to come inside with her, Dexter hesitates, then says "I'll come in," with a voice that
trembles. Dexter renews his romance with Judy that night and breaks his engagement to
Irene, changing his plans for the future the moment Judy calls him back into her
life.