You Can't Fake the Core

“You Can't Fake the Core” is Sugar’s name for a conviction that shapes her advice to three people struggling over whether to leave their partners: a person’s deepest truth will eventually prevail, even when love and other sincere feelings pull in the opposite direction. The principle does not make departure painless or excuse careless treatment of a partner; it asks the letter writers to acknowledge what they genuinely want and make a considered choice.

Meaning and central claim

The expression condenses Sugar’s distinction between the many truths a person may hold at once and the truth that lies at the center of their desire. Someone can love a partner and still not want to remain in the relationship. The presence of that love does not, in her account, invalidate the wish to leave. She urges the three writers to trust their “truest truth,” even while recognizing that other truths, including love for the people they may leave, continue alongside it.

Her conclusion gives the idea the force of a rule: “you can’t fake the core.” The truth there, she says, “will eventually win out.” This is not presented as a guarantee that following it will be easy or free of grief. Rather, suppressing it indefinitely means resisting a force that Sugar portrays as ultimately impossible to evade.

Advice about leaving

Sugar makes the expression practical in a sequence of short imperatives. She tells the writers to go even when they have nowhere else to go, do not know exactly why they cannot stay, or cannot yet explain their desire. Her core formulation is direct: “Because wanting to leave is enough.” She asks them to write that sentence on their palms and reread it until their tears wash it away, turning an abstract permission into a physical reminder that may disappear even as it has been absorbed.

That permission is not a call to abandon a relationship at the first sign of difficulty. Sugar distinguishes a settled yearning to be free of a particular relationship from a passing reaction to conflict, uncertainty, or struggle. Leaving still carries an obligation to act decently and compassionately toward the partner who is hurt. The expression therefore supports self-trust without making desire a license for cruelty: the choice can be valid, and its consequences for another person can still matter.

The first marriage behind the principle

Sugar grounds the advice in her own first marriage. For years, she could not give a single explanation for why she needed to leave. She identifies several contributing truths: she was too young to commit to one person, felt less compatible with her husband than they had first seemed, and was driven by her writing while resenting his mixed response to her success. She was not ready for long-term monogamy, resented the difference between his upper-middle-class upbringing and her poor one, and was grieving her mother’s death and the loss of her stepfather’s role as a father. By twenty-two, she felt orphaned and overwhelmed by grief.

Rather than choosing one item from that list as the decisive explanation, Sugar says the reasons, each true in its own way, ultimately came down to the same conclusion: she had to leave because she wanted to. Her account makes the expression less a demand for a perfectly reasoned case than a challenge to recognize the decision beneath a tangle of explanations, obligations, and attachment.

The departure was not clean. Sugar desperately wished she did not want to leave and agonized over the decision. Unable to tell her husband plainly that she wanted out, she had sexual relationships outside the marriage; after confessing, the couple spent about a year separating amid intense pain. Sugar describes the divorce as the most excruciating decision she had made. This history gives her advice its cautionary edge: recognizing the core desire matters, but avoiding it can turn an honest ending into a more damaging one.

A contrast with staying

Sugar’s later marriage to Mr. Sugar clarifies that the principle is not a blanket rejection of commitment. After several years with him, she understood her first marriage more clearly and saw similarities between the two men: both were kind, gentle artists who shared her interests in books, the outdoors, and left-leaning politics. Both marriages involved arguments and private struggles. The decisive difference, as Sugar describes it, was not an absence of conflict in the later relationship but the absence of a desire for freedom from it.

In nearly sixteen years with Mr. Sugar, she says, she never once thought of leaving. When the two of them faced difficulties together, she felt they were struggling toward greater strength rather than fighting to escape. Against that contrast, “You Can't Fake the Core” becomes a principle of discernment, not a formula dictating that every strained relationship must end: the same hard work can mean either resisting a relationship one no longer wants or choosing to remain within one that still feels true.

The closing challenge

Sugar ends by returning the decision to the three letter writers. She does not decide for them; she asks whether they will act on what they know now or defer it until later. That question makes the expression both an interpretation of her own past and a prompt for action in theirs. The core cannot be faked, in her view, but a person can delay listening to it—and delay can shape how much pain the eventual choice brings.