Behavioral Grooves Podcast
Behavioral Grooves Podcast
Kurt Nelson, PhD and Tim Houlihan
What Happened to the Person I Knew? Why Relationships Change
49 minutes Posted Mar 2, 2026 at 6:00 am.
] Understanding Relationship Changes
] Relationship Changes Over Time
] Self-Expansion Theory and Michelangelo Phenomenon
] Growth vs. Escape: What’s Really Driving the Change?
] How to Navigate Relationship Changes
] Updating the Story of “Us”
] The Importance of Compassion
] Regret, Loss, and What to Do Next
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49:53
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Show notes
Relationships change because people change. In this episode, we explore what it means when someone you love no longer feels like the person you once knew. Using behavioral science, we examine why personality shifts over time, why growth does not always happen in the same direction, and how to decide whether to reconnect, recalibrate, or let go.
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Links
The All-or-Nothing Marriage: How the Best Marriages Work by Eli Finkel
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Music Links
Gotye - Somebody That I Used to Know
Flora Cash - You’re Somebody Else