Don't Understand this Feeling

I do not understand this feeling inside of me. Why do I always think the worst and be so negative? Why is it this way? Why do I have this empty feeling inside? I have all of these questions and no solid answers. He came, he left, and now I am empty. Well I am not really going to air out this business on here, because I am so confused. I am not sure what I want. I thought I did know, but he didn't make me feel like I was perfect. I guess when I have had the best it is hard to find anything that compares to that. It was surreal and then it just wasnt. Seriously, I do not understand. Oh well.