Where does the love go?

Blogging question…..How long to comments stay on your blog? I went back to re-read my old posts and there are NO COMMENTS, none. I know I don’t get many, but there are NONE. Surely I got a few comments here and there. To test my theory I went and looked at other peoples that I know for sure had comments and their old posts said 0 as well. Where did the love go?