Though I miss things, I try my best not to regret anything even if I have done some regrettable things in the past. As for your not-girlfriend, I have a weird relationship with a girl going on ten years. Together? Sparks that would start forest fires, but then inevitably, one of us moves away and hurts the other person. The best one was when we made up and then I told her I was moving to a different continent. But, she got me back. Anyway, I miss her sometimes but I don't think I should. I miss my close friends who are now scattered around the world. I miss being that kid who gets told that I have my whole future ahead of me and I sometimes miss being that guy who would have a lot of late night adventures that are shitty, but turn into good stories, except not really. i guess I try not to miss things because I find that holding on to things doesn't help me in my life as it is right now and I really want to and am trying hard to move toward building a life where I miss people and things that will miss me back.