Divorce is usually caused by one of the ‘3 I’s,’ therapists say. Here’s what they are and how they destroy a marriage.

Insider
Insider
Published in
3 min readMay 31, 2021

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Conflict caused by incompatibility or irreconcilable differences can affect a couple over their marriage, said Tess Brigham, a therapist.

Bill and Melinda Gates.
Bill and Melinda Gates recently announced they would get a divorce. Photo: Kamil Zihnioglu/Pool/Reuters

By Canela López

Bill and Melinda Gates recently announced that they would divorce, mutually tweeting that they were ending their 27-year marriage.

Melinda Gates’ petition for divorce called their marriage “irretrievably broken.”

Tess Brigham, a therapist, told Insider that over such a long marriage, tension can build up in one of three main relationship categories, or the three I’s: incompatibility, infidelity, and irreconcilable differences.

Here’s how the three I’s can affect a couple over their marriage, according to therapists and attorneys.

Incompatibility in living, spending, and romantic habits can build resentment over time

Brigham said some of the most common incompatibilities that lead to divorce are politics and religion.

Marilyn Chinitz, Tom Cruise’s divorce attorney, disagreed.

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