I used "The Expression-Privacy Dialectic theory" in my lifetime. I am an honest husband and I have never hide any secret from my wife.
Couple years ago, I received a text message in Tango app from a female that I did not know her. She wrote, " call me I need to talk to you." I didn't see that message in that time. One day my wife read her message. She asked me, "Who is that lady that she wants to talk to you." I couldn't recognize when I checked her profile, so I told her that I don't know her and you know that I never hide anything from you. Because of honesty which is among us that didn't affect our relationship.