The ambiguous ending of Couples Weekend allows viewers to draw their own conclusions, a situation that the film's team and actors express is entirely intentional. Alexandra Daddario, Ashley Park, and writer Nora Kirkpatrick shared their perspectives on the film's final moments in an interview with ScreenRant. The trio emphasized that the story primarily explores themes of honesty and personal growth rather than infidelity.

One of the most striking statements during the interview was the creative team's view of the film, particularly its ending, as almost a cautionary tale for long-term relationships. Kirkpatrick noted that the final scene attempts to convey to viewers that couples need to reintroduce themselves to each other as they change over time. Expressing that it is impossible for someone to remain the same person they were at the beginning after being together for several years, Kirkpatrick stated that such expectations can lead to conflicts or failures.

According to Kirkpatrick, the ending also addresses the danger of couples believing they are still moving forward together while gradually drifting apart emotionally. She added that maintaining a relationship requires a constant effort to understand who your partner is. Daddario, portraying the character Debs, believes that the avoidance of providing a definitive answer in the ending is quite effective; not giving a clear response about whether staying together is the right decision allows viewers to reflect.