Answer:
Dexter's need to possess Judy Jones is forshadowed when the text states "He wanted not association with glittering things and glittering people—he wanted the glittering things themselves." This reveals Dexter's desire to own the glamous things he came in contact with instead of passively acknowledging them. This attitude is also seen in his behaviour towards Judy. Additionally, the narrator explains "Often he reached out for the best without knowing why he wanted it—and sometimes he ran up against the mysterious denials and prohibitions in which life indulges." This foreshadows Dexter's need to reach out to Jones in his obsessive manner, even if he gets rejected.
Explanation:
Disclamier: I am not familiar with the text, but I hope this helps.