@Phoenix32890,
Thank you, Phoenix, for your reply. He and I share an email account and he was using this for communicating with her. We have been married for twelve years, no children, no straying. Before we were married he considered himself a "serial monogomist". We got together when he was 47 and I was 45. We have a very playful relationship and have both done much self-help work, so we do have "tools" to approach this with. I did approach the issue and told him how I felt hurt by his not being forthcoming with me, but his first reaction was anger at me for even "going there" with feelings of jealousy. I do realize that I must work on myself and feelings of either inadequacy or low self-esteem. At the same time, I do want a relationship of open communication, connection and respect. You are very wise in your counsel about the aggressiveness and stridency. Again, my thanks.