the first person you ever had feelings for. It doesn't matter if it happened when you were five, or fifty-five. It doesn't matter if he or she loved you back. All that matters is that at one point in time, he or she was the first person you ever loved and wanted to be with.
I may be a senior in high school, but I remember my first love. I met him in pre school and I still have extreme feelings for him...even though he doesn't love me back.