Well there was that one time....okay that was my fault. But you wouldn't have met Leia if not for me and that worked out pretty well for you.
Yes, back. You've been here before. Twice since I've been here which is a little over a year now. When you go back and return, you don't remember anything about having been here before. And you might also come from a different point in time. Like I was here before but it was before Yavin IV, I was barely nineteen. You can search your name on the network and see things that happened to you when you were here before it gets kind of confusing.