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It’s Your Friends Who Break Your Heart
What makes friendship so fragile is also exactly what makes it so special. You have to continually opt in. That you choose it is what gives it its value.
But as American life reconfigures itself, we may find ourselves rethinking whether our spouses and children are the only ones who deserve our binding commitments.
Jennifer Senior • It’s Your Friends Who Break Your Heart

In studies of peer groups, Laura L. Carstensen, a psychology professor who is the director of the Stanford Center on Longevity in California, observed that people tended to interact with fewer people as they moved toward midlife, but that they grew closer to the friends they already had.