I have not had one in years, but if the occasion does arise he will definitely know about her.
...I thought that maybe a new life, a different life, wouldn’t be so bad. But where the hell did I put the receipt, and could you return something that was over twenty years old? Where do you go to get a new life when your old one has you so puzzled you don’t know how to fix it? Wish I knew.
-Anita Blake (Laurell K. Hamilton)
Certainly he knows and since she is Bi like his wife, I know here would like a fling with her too.
My husband and I have a no secret policy. He as been in Korea for about a month and here may be some I do not know about yet.