Our girls don't really seem to have any idea of what is going on between us. My wife told them that I snore and that is why I sleep in the guest bedroom. Our youngest did tell me one day that she feels sorry for me because I have to sleep somewhere else. I don't think they have really noticed we don't touch each other anymore. I'm not sure how long this can be kept secret. I know my wife wants to spare them the pain. That's one reason she is still at home. It helps that I am gone as often as I am. It's like having a separation half the time anyways.