answer:My recommendation is don’t have specific expectations or assumptions for how much time you will be spending together. Keep your own things relatively tidy. Come up with an agreed upon rule about food. Personally, I think the best plan is no one eats someone else’s groceries or leftovers. Let him know if you will not home at your usual time. I am not talking about an hour here and there. I think people who live together, I don’t care what the relationship, roommate, SO, parent child, should have a reasonable idea of when the other is coming and going so no one worries. I don’t mean texting every part of the day about where you are, I just mean common courtesy when a routine is outside of the usual. I think the biggest problems happen when one person parties a lot and constantly has other people coming and going into the apartment who have little respect for the other roomates space, or if one person is much more of a slob than the other. I never had problems living with friends, and even when I moved in with my fiance, now husband, there was barely a transition for me. Good luck with your move, sounds exciting! Are you both familiar with the NYC?