It's becoming increasingly apparent that someone has learnt something you wish they hadn't. So, how are you going to proceed? Should you keep trying to obfuscate the truth? Or would it be simpler (and more honest) to accept that they know and acknowledge that your secret isn't so secret any more? That's almost certainly the best way to proceed. Yet, accepting that a truth is out in the world doesn't mean that we have to lay the rest of our soul bare too. Be candid, by all means, but remain diplomatic today.
19 Jul 1976