I’ve been cheating on my wife for 4 years now with a cashier from a kiosk. The last year we’ve been into constant arguing about the future of our relationship and my wife. She asked me to stop having sex with my wife and only to have sex with her. I told her I couldn’t do that. She then stopped having sex with me and started dating another man. Now they are talking about marriage. What do I do now? The thought of her in another man’s arms is driving me crazy.