For now, go about your business as usual. If he brings up the ow, then you can say something...but if he doesn't...remain quiet. To work on the marriage, there has to be the two of you and certainly not a third party, so toss her out of your head right now and focus on today and what you can control in your life.
Be his friend, a good listener and sit quietly...the answers will come. Oh...and remember to breathe!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
