A secret someone tells you is a key, not a souvenir. Don’t show it around.

What you were given was access, and access is meant to be used for the person who gave it rather than displayed. Treating it as a thing you now own leads to the halfway version, where you do not tell the story but you let people know there is one. That does most of the damage of telling.

Hold the whole thing, including the fact that there is something to hold. No hints, no meaningful silences, no telling one person because they are different. If you need to talk about the weight of it, talk to the person who told you.