Since Hallie and Jack are both protagonists in their mid to late twenties, The Love Wager addresses a theme that surfaces often in the literature about and lived reality of this decade of life, and that is finalizing the turn from youth to adulthood. Often this wish to fully enter the realm of adulthood, and be acknowledged as such, goes along with the wish to enter into a supportive and committed romantic relationship. Maturity, it’s assumed, and the resultant achievement of adulthood comes with certain rewards like financial stability, better relationships, and self-respect in return for making choices around personal responsibility, commitments to other people, and learning the ability to nurture and provide. Painter suggests that adulthood is less a threshold than a gradual awakening—one that requires emotional courage, not just external milestones.

Hallie’s belief that she’s emerging from the “winter” of her twenties into a period of rebirth indicates her wish to mature, for which she’s prepared by episodes of what she calls self-improvement. This time of self-focus and renewal, she believes, will prepare her for a successful relationship, avoiding a repeat of the rejection and sadness over Ben. Her efforts at maturity are, initially, to take on part-time jobs in addition to her full-time employment to improve her finances and to room with Ruthie to save up money for an apartment of her own. Having her own living space indicates that Hallie is independent and self-reliant, and finding her dream apartment confirms that she is becoming successful, financially secure, and deserving of reward.

Improving her appearance with a haircut and new clothes is another step to indicate Hallie’s preparedness for dating and finding love, which she sees as a path of growth toward the future she desires. Engaging in casual sex, then sneaking out of the hotel room of a man whose last name she doesn’t even know, comes to signify for Hallie the rock bottom of her period of confusion. She decides that self-improvement means pursuing exclusive dating and romantic monogamy with some commitment involved, a decision in line with mainstream conventions around heteronormative love and romance.

That she performs logical gymnastics in order to justify her wish to have sex with Jack without a declaration of attachment or commitment proves how much Hallie desires him, since she believes an ongoing relationship of that sort would not be in her best interest, nor the actions of a responsible young adult in search of love. However, the choice to be honest about her feelings and pursue what seems best for her, despite her attraction to Jack, indicates that Hallie has achieved the emotional maturity she desires. This maturity means she is ready to deal with the potential complications and risk of engaging in a fully committed romantic relationship—again—but this time with greater self-awareness and with a partner she knows she relates well to. Likewise, Jack’s growth is shown through his increasing ability to articulate his feelings, make space for Hallie’s hesitations, and embrace vulnerability without expectation. That Hallie and Jack have both undergone significant personal growth in terms of their ideas about romance—and that they have established a friendship as firm grounds for the relationship—suggests their future will be happy, which is the appropriate ending for the romance.