Navigating Jealousy in Long-Term Relationships
A new survey finds 70% of adults experience recurring jealousy in long-term partnerships. Relationship experts explain how to understand the underlying insecurities, communicate effectively, and set boundaries to prevent damage.

Seven in ten adults report feeling repeated jealousy in their long-term relationships, according to new data from ClarityCheck which surveyed almost 10,000 people. Experts say the emotion is natural, but how individuals respond to it determines whether a relationship is strengthened or damaged.
Nia Jane, a CORST-registered psychosexual and relationship therapist, states that jealousy is a normal emotional response to a perceived threat to something valued, such as a partner or a sense of security. Clinical social worker Reuven Rosen of ConnectWell Therapy adds that the fear is often rooted in a fear of not mattering, or fear of being replaced. The feeling acts as a symptom pointing to deeper personal insecurities, which might be triggered by changes in a partner's behavior or shifts in self-perception.
Jealousy as a Symptom
The source emphasizes that jealousy itself is not the core problem. Cheryl Kennedy MacDonald, founder of Female Focused Therapy, advises that people need not worry about feeling jealous but must be aware and respond to the feeling correctly. The crucial step is to identify the real issue driving the insecurity, whether it's related to a partner's social habits or personal anxieties about desirability. The goal is to address that underlying discomfort.
Separating Feeling from Action
Catastrophic thoughts, like assuming a partner will be unfaithful, often accompany jealousy. Rosen cautions that jumping to conclusions is where problems start, noting these fears are frequently unfounded. Jane stresses the importance of distinguishing an emotional response from a behavioural one. While feeling jealous may be involuntary, individuals have control over how they choose to act on that feeling. The healthy response prioritizes the relationship through calm and rational communication.
Communicating for Reassurance
Approaching a partner requires care to avoid accusations. Rosen suggests avoiding opening lines like a question that puts the other person on the defensive. Instead, he recommends expressing one's own feelings and need for reassurance. MacDonald offers a framework: explain what happened, how it affected you, and what you fear it means. Articulating insecurities gives couples a chance to work together, allowing a partner to understand vulnerabilities and provide reassurance through words and actions.
Establishing Mutual Boundaries
Boundaries are vital because people have different tolerances for partner interactions and varying dispositions toward jealousy. Rosen stresses that neither partner can respect a boundary that's never actually been discussed. MacDonald warns against assuming shared boundaries, stating the only way to manage potential jealousy is to talk and agree boundaries that work for both people. Security is not about eliminating all threats but building trust. Jane notes that long-term relationships require recognizing that security and certainty are not the same; no relationship can offer an absolute guarantee against change.
MacDonald says security is found in consistent behaviour, such as affection, honesty, and quality time. Building a secure relationship involves developing enough trust, communication, and self-confidence to make uncertainty more tolerable. This process must be mutually sustainable, acknowledging differing social needs. The ultimate aim is not to eliminate jealousy but to better recognize it, understand its roots, communicate about it without exerting control, and take proportionate action.





