Communication:

-Communication communication communication. あなた need to talk about everything, and i mean everything.
-If something is bothering you, あなた cannot expect them to know, because of the distance. So あなた need to be able to talk to them. Tell them あなた are upset. With the distance, あなた cannot behave like あなた would in a local relationship, あなた cannot be upset and expect them to know. Sometimes it is obvious, but even then, it is good habit to be straight forward: “I am a little upset right now. X, Y, and Z happened and I am not happy with it”.
-You do not need to tell them what you...