Show me your friends and a clinical psychologist can read the state of a relationship before either partner says a word. Dr. Laurie Betito breaks down why emotions and attitudes spread through a friend group the same way they do anywhere else, meaning constant exposure to friends who treat cheating or divorce as normal can quietly chip away at how someone views their own partnership over time.

A genuinely good friend looks different from that. Dr. Laurie outlines what separates healthy venting from corrosive complaining, and why a real friend supports a relationship instead of treating it as competition for attention. The harder conversation comes when a friend crosses a line entirely, and Dr. Laurie offers a specific approach for raising it that doesn't come across as controlling who a partner is allowed to see.

The line between a flawed friend and a genuinely harmful one is more specific than it sounds, and Dr. Laurie draws it clearly.

**Why Good Friends Strengthen a Relationship**

Dr. Laurie explains the contagion effect of negativity within friend groups and names the specific habits, like accountability and normalizing conflict, that define a truly supportive friend.

**When a Friend Becomes a Problem**

The conversation shifts to recognizing a friend who undermines a relationship, including the complicated case of a shared friend, and how to raise the issue without it sounding like an ultimatum.

Topics: relationship advice, friend group influence, toxic friendships, healthy friendships, Dr. Laurie Betito

GUEST: Dr. Laurie Betito | drlaurie.com

Originally aired on 2026-06-19