STOP IT. IF you felt the need to ASK, you already KNEW! Listen, I'm 63, I was married to the same man for 33  years and HE decided to talk to an old girl friend "privately" which made me VERY uncomfortable and I over heard  one of those conversations where he referred to her as Darlin. Oh no. Not doing that. I put my foot down. Don't do this anymore! You are asking for trouble and the ruination of your wonderful marriage! STOP IT!