About 15 years ago I was in a relationship. I was in love, but I didn't think we would work out as I was older than him and wanted children. He told me that he loved me, but I didn't say it back. I ended it, we both moved on and had families. We kept in loose, friendly contact. Recently his relationship ended, and he started wanting more. I told him not to contact me again. It's playing on my mind - that I didn't tell him that I loved him years ago. Should I send him one final message - to tell him that I did? Or is it better that he never knows.