Theo Decker and Xandra Terrell

Theo Decker and Xandra Terrell share a relationship built on mutual resentment and a complete absence of affection. Xandra, the girlfriend of Theo's father Larry, is a shallow, self-absorbed woman who openly resents the intrusion of a teenager into her life. Theo, grieving and traumatized, views her as a vulgar, untrustworthy interloper who has taken his mother's place. Their interactions are a series of petty conflicts and cold silences, never developing into any form of genuine care or familial bond.

First Impressions and Mutual Antipathy

Theo's first impression of Xandra is one of shock and distaste. When she and Larry arrive at the Barbours' apartment to collect him, Theo is struck by her appearance: a tan, fit-looking woman with flat gray eyes, a gap between her teeth, and a strong smell of Juicy Fruit gum. She is dressed in a younger woman's clothes—low-slung jeans, red platform sandals, and lots of gold jewelry—and her manner is brash and familiar. She immediately corrects him on her name, insisting it is "Xandra with an X," and launches into a monologue about Larry's sobriety, revealing a lack of tact that sets the tone for their relationship. Theo, still reeling from his mother's death, finds her presence jarring and unwelcome. Xandra, for her part, makes no secret of her annoyance. Theo overhears her complaining on the phone, saying, "I didn't sign on for this. A kid? Hello?" and declaring, "I'm not a freaking soccer mom." This establishes the fundamental dynamic: Theo is a burden she never wanted.

Life in Las Vegas: A Household of Strangers

In Las Vegas, the three of them live together in a large, sparsely furnished house, but they operate as disconnected roommates rather than a family. Xandra works nights managing a bar called "Nickels" and often brings home plastic platters of bar snacks. She and Larry spend most of their time out, leaving Theo to fend for himself. When they are home, the atmosphere is tense. Xandra has a cold way of dismissing Theo, often answering his questions with a sarcastic "Apparently." She is also careless with her dog, Popper, a Maltese she won in a raffle, leaving him tied up outside for long periods, a neglect that Theo eventually takes upon himself to remedy. Theo, in turn, is openly critical of her, telling Boris that he can't understand what his father sees in her, finding her neither particularly nice nor attractive. Their relationship is a series of small, simmering conflicts, from arguments over who left the pool door open to Xandra accusing Theo of stealing her cigarettes.

Theft and Final Confrontation

The relationship reaches its breaking point after Larry's death. In the chaos following the news, Theo and Boris ransack Xandra's bedroom, stealing her tip money and a stash of cocaine. When Xandra confronts Theo on the phone after he has fled to New York, their conversation is a bitter exchange of accusations. Theo accuses her of stealing his mother's emerald earrings, which she claims Larry gave her. Xandra, in turn, tells him he is "headed down a bad road" and delivers a final, cutting blow: "You and your dad are a whole lot more alike than you might think. You're his kid, all right, through and through." This remark, which equates him with the father he despises, haunts Theo long after the call ends. The relationship ends not with reconciliation, but with a final, venomous exchange that solidifies their mutual contempt and leaves Theo feeling dirty and misunderstood.