It's actually a pretty good question and my answer is that I don't really know. I want to think I understand it, but something tells me that when I am on my death bed, that's when it will all come clear and I will know if I wasted years in a relationship that doesn't matter. If I achieved my full potential of happiness. And then, I may realize it's too late. I constantly wonder, since I believe when you die it's over, that I may not be getting the most out of life that I could.. but then, I wonder if it does not matter what you have or who your with, will you ever be completely happy..