A secret can become part of your identity even when you no longer care what it conceals.

Secrets acquire independent life. Long after the content stops mattering, the habit of holding it remains, and the keeping has become part of who you are rather than a protection of anything. You are guarding the guarding.

If something has gone quiet in this way, ask what would actually happen now if it were known. Sometimes the answer is still serious and the keeping is warranted. Often the risk expired years ago and only the vigilance stayed.