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The Science of Friendship Breakups: Why Most Friendships End in Silence

There is no ritual for the end of a friendship — no breakup talk, no paperwork, usually not even a fight. The research says that's the norm, not the exception: friendships mostly dissolve by drift and circumstance, about half of a personal network is replaced within seven years, and only about half of the friendships people name are even reciprocated. Yet the loss is real — grief researchers call it disenfranchised grief, mourning that gets no social permission. Here's what forty years of dissolution studies actually found.