I also work nights 5 days a week, M-F, pretty much the same hours as you. My husband works Sun-Thurs, 5a-1p. I usually sleep from 9-2. He comes home at about 2p so we eat lunch/dinner and spend some time together until about 5 or so and then I go back to bed until about 8:30. Even on Saturdays, we don't spend that much time together because I sleep most of the day and he's in bed by 7:30 or 8p. I really don't have much advice. I want a different schedule but I'm trying to hang in there because of the shift diff until a few bills get paid off.