Mel Robbins addresses how to know whether a relationship's problems are workable or signs it's truly broken. Drawing on her nearly 30-year marriage, she states two requirements for lasting partnerships: both people must want it to work and be willing to do the work, and the issues must not require either to abandon their dreams or values. She urges readers to love their partner as they are now, not for their potential or who they used to be, because people rarely change and persistent expectations breed resentment.

She extends the ABC Loop into an ABC(DE) Loop. After Apologize/Ask, Back off/observe Behavior, and Celebrate/model Change for at least three months, if nothing shifts, move to Step D: Decide if it's a Deal Breaker, asking whether you could be with this person for life if they never change. Step E: End your bitching or End the relationship—either fully accept them and stop complaining, or acknowledge incompatibility. Robbins illustrates with her own ADHD and Chris's tolerance of it, showing acceptance in practice.

Robbins distinguishes commitment from compatibility, citing the Gottmans' research that 69 percent of relationship problems are unresolvable and that gridlock stems from "unfulfilled dreams." She gives examples like one partner wanting to move to London or have children while the other doesn't, advising readers to weigh which choice they would regret more. She warns against the fantasy that someone better is out there, noting "the grass is greener where you water it," and observes that many divorced people regret not working harder, while couples who pushed through hard times rarely regret it.

For those facing heartbreak, Robbins explains it as grief, rooted in nervous-system patterns intertwined with the ex. She recommends 30 days of no contact, citing research that 71 percent of people feel better by 11 weeks. Her tactical recommendations include removing environmental triggers, refreshing the bedroom, leaning on friends, filling the calendar, taking on a personal challenge, and avoiding a "revenge diet" aimed at winning the ex back.

The chapter closes by reframing the entire book: the most important relationship is the one with yourself. Robbins argues that a relationship doesn't make you worthy—your existence does. She calls readers to apply Let Them and Let Me inwardly: prioritize their own happiness, set boundaries, pursue dreams, and walk away from what doesn't serve them. The book's closing summary restates the problem (accepting less than deserved), the truth (love people as they are), and the solution (creating loving relationships is your responsibility), urging readers to stop chasing love and start choosing it.