Can you explain your thinking about wanting your H to spend some time away from both of you before moving back in? I'm not saying it's wrong. It's just that your H seems to be a little weak right now, and it may be very difficult for him to be alone. The experience may convince him that he really wants to be with you. But the risk is that he may mistake his loneliness for love for the OW (she probably will be extra nice to him during that time) and return to her. I think that getting him home would really help him break his attachment to her. It seems to be what he wants to do. He seems to be making his own decision, and you have been extremely patient in letting him come around to that. I wouldn't set up any impediments to it.