The Friendship Formula

The Friendship Formula — Caroline Millington

Tuesday night, ten o'clock. You're on the couch, a glass of wine in hand, scrolling through a group chat on your phone. You haven't replied to anyone for three hours. You've cancelled two meet-ups in the last three weeks. Yesterday was your best friend's birthday and you sent only a quick WhatsApp — whereas you used to bake a cake. Something changed in your early thirties and you don't know exactly when. You just know that work, the kid, your partner, your parents, the weekly shopping have slowly devoured your energy — and friendship, which used to be the center of your life, became an accessory.

Caroline Millington's *The Friendship Formula* finds the reader exactly at this moment. The book is the product of twenty years of female-friendship observation from a British journalist who worked at the *Daily Mail* for two decades, then at her own publications, watching daily how women's friendships form and unravel. *The Friendship Formula* isn't an academic psychological treatise. It's a practical guide for looking at your social circles with Marie Kondo–like enthusiasm — which connections spark joy, which don't — and how to handle the latter.

What you'll get from the next forty-five minutes

In the next forty-five minutes you'll understand why adult friendship thins after our twenties. You'll meet the "drains and radiators" framework — the simple mental handle Millington gave modern people. You'll learn how to recognize a toxic friend, what "ghosting" means, what a "frenemy" is, and why after a spouse and a child you talk to your best friend less than to a stranger at the gym. At the end you'll get concrete exercises to review your social circle tomorrow morning and release what's already released you.