Ok, this is not your traditional advice. Give her reason to be jealous. That doesn't mean you have to be disloyal. Stay late at work. Start wearing new clothes, losing weight, new cologne, staying out a little later than you need to before going home, or whatever. Join an athletic club, and focus more on yourself rather than on what you think she is up to. People who cannot be trusted don't trust others. However, in all this, make sure if she checks up on you that your story checks out to the "tea." This would possibly rekindle the relationship and trigger those old feelings in her. Quit accusing her and asking her something you already know the answer to. Don't follow her or any of the things you proposed. She would hate you for it. But make sure she doesn't get away to meet him. Tell her anything--you have to work--or whatever it takes to keep her from that initial meeting. When she comes to you for attention, however, always give it to her and act like nothing is wrong. IE, put yourself in a position of being challenged and pursue it the same way you would have before you married her. Throughout it all, don't be angry or passive. Tell her how beautiful she is, bring her an occasional gift that is special, and take her out to spend quality time together--but don't try to come on to her. Make her come on to you. If you insist on using the e-mail, use it to your advantage. Go somewhere and contact the man as if you are another woman, trying to lure him in another direction. How do I know? I was that disloyal one married for 30 years and dated him for 7 and half years. If he had done this for me, I would still be there. I did not feel that he gave a "flip" and was very passive. Are you that same man? P. S. I quickly grew weary of the one with whom I thought I was in love. Hey, you might even try a little flirting in front of her.