I wouldnt say dont tell him at all, because that could anger him, but tell him right before you are doing it. If he is going to contact OW he will do it once he realizes you werent coming home any time soon. I used to and sometimes still do feel exactly what you are, I dont want him to know when I am going out in advance, because then he is going to call her. But you know what....He calls her anyway, so either he sneeks out to run a stupid errand or he goes on the computer when I am right down stairs. I am sorry that I do not have any upbeat for you right now, but I am feeling a bit defeated today. But like I said, just tell him right before you are leaving. That would really make him wonder anyway. Just not saying anything and then you are not home would piss my H off, so I imagine yours would have a similar reaction.
