Only thing A is to get to the letter box and filter out those pending letters but keep on track with what they say and relate to your wife when she asks about why there are no pending letters just say that they must have worked it out and all is good. The last thing either of you need is that stress, the power of the mind can have critical outcomes to a patients well being so filtering letters it is, anyway if your wife is like mine or any ones wife that is, I'm not smart enough to out fox my wife at all. Getting busted time and again for well doin stoopid (stupid) stuff and like Winnie The Pooh with a finger in the honey jar when all the while deny deny deny......
Keep your heads up and enjoy each day one thing if I am feeling off I go into the lounge and read the large wall hanging we have "The Desiderata" it offers a perspective and for me up lift.