A friend who shares everyone else’s secrets with you is showing you exactly where yours will end up.

Someone handing you information is also demonstrating what they do with information. The story about a third person arrives as closeness, as if you are being let inside something, and the same behavior will run in the other direction the moment you are the interesting one. Nothing personal in it; it is just how that person operates. You are watching a live demonstration.

You do not have to end the friendship over it, just calibrate. Keep the enjoyable parts and stop feeding the part that travels. If you want to know how safe someone is, notice whether they can be trusted with something small and boring first.