My H cheated less than 2 years into the marriage. I stayed and tried to make it work for 5 years because we had a child. During those times, he had 2 EAs (or so he said and he called them "just friends" too). I finally left and we have been separated for 6 months. He wants to make our marriage work, I'm not sure if I do. The betrayal hurts less as the years pass by but there are days when the pain feels so fresh. One of reasons I have second thoughts about trying to make things work is fear of more deceit. Still confused now. Good luck.