Book SummaryNot Just Friends, by Shirley P. Glass

1-Page Summary1-Page Book Summary of Not Just Friends

In Not Just Friends, Shirley P. Glass explores the complexities of infidelity in modern relationships. She argues that infidelity is a significant threat to marriages and that it often begins with seemingly innocent friendships. Glass emphasizes the importance of understanding the dynamics of infidelity, recognizing the warning signs, and taking proactive steps to protect your relationship. She also provides guidance for couples who are recovering from infidelity, focusing on rebuilding trust, emotional connection, and intimacy.

Glass was a psychologist and marriage counselor who specialized in infidelity and trauma. She was a clinical member of the...

Not Just Friends Summary Defining and Comprehending Infidelity

Here, we'll delve into the different types of cheating and how they manifest. We’ll look at emotional infidelity, along with sexual and combined infidelity. We’ll also consider vulnerabilities and the pathways that cause infidelity.

Types and Manifestations of Unfaithfulness

Emotional Infidelity: Characteristics & Indicators

Glass explains that emotional infidelity can happen without physical intimacy. It involves a romantic or emotional bond that breaches trust. This betrayal can be especially harmful to a marriage because it engages emotions, thoughts, and physical responses.

(Shortform note: In The Science of Trust, John Gottman explains that when a person in a committed relationship experiences repeated betrayals—such as their partner turning outside the relationship for responsiveness and connection—the attachment system begins to code the partner as unsafe. This produces chronic diffuse physiological arousal (a sustained state of threat and hypervigilance), leads to negative sentiment override, and gradually reorganizes the relationship away from secure bonding and toward mistrust and self-protection.)

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Not Just Friends Summary Recovering and Repairing a Partnership Following Infidelity

Glass believes that restoring trust after infidelity involves understanding each other's perspectives and vulnerabilities. Restoring trust requires both partners to make a sustained effort for an extended time. The betrayed partner will be alert to any indications of dishonesty or further betrayal. The partner who was unfaithful should be open, honest, and accountable, ready to respond to questions about their plans, activities, and company. They must also significantly alter the behavior patterns that resulted in the infidelity. The couple must be willing to investigate the weak points in how they interact that contributed to the infidelity.

(Shortform note: In The Body Keeps the Score, Bessel van der Kolk writes, “Being able to feel safe with other people is probably the single most important aspect of mental health; safe connections are fundamental to meaningful and satisfying lives.” One way to begin restoring trust is to create a nightly “safety ritual.” Set aside 10 minutes each night to quietly review one small part of the day together while breathing slowly. This helps your body associate increased...

Shortform Exercise: Understanding Emotional Infidelity

Explore the concept of emotional infidelity and its effects on relationships as discussed by Shirley P. Glass.

What do you think might cause someone to engage in an emotional affair without realizing its impact?