Don't try to understand his thought process. His thinking process is different than yours, and when emotions are involved in it, there is no logic.
Pointing things out to someone else, especially in this type of situation, is not an advised approach. People have to realize things on their own.
"One day at a time is my new motto. Today, no R talk, no text messaging, and "act as if" I am happy at home."
You got it. Add "Detach" and "No Expectations" to the list and your peace of mind will go up. The side benefit is that you'll appear more independent to your H and presumably, more appealing.
When he asks where you were or where you're going, leave out some details, large and/or small, as if you're absent minded.