Would Luke and Leia's relationship in the original movie be "It's Complicated'
http://cheezburger.com/61613825
This is related to your post, I assure you, just not the overall thread.
On-topic, though, I tend to play up communication and travel difficulties far more than in the films (and definitely more than in the TV series). Instantaneous communications are possible, but horrendously expensive/difficult the further out they must go. Secure communication is often handled via couriers (automated or not) or heavily-encrypted transmitter installations. Messages between systems almost always have some sort of time-delay, even using subspace transceivers.
Edited by RedfordBlade