This is a question for the attorney. In Missouri it is still considered adultery. Advise from my lawyer was keep to yourself. And if I felt I had to see someone make sure no one saw me. The stbx could have used it in court to make the settlement less. He could have lied and told judge that he wanted to come back but I had someone else.
-------------------- Someday your life will flash before your eyes, make sure it is worth watching.