Julio Iglesias

I danced a song by Julio Iglesias w/my father for my wedding and do not know the name of the song...it is not De Nina a Mujer...it`s in spanish and it`s along the lines of saying..."you are not by my side my heart"... I would like to download the song, but don`t know the name...it was supposed to be nina a mujer, but my CD didn`t work and the DJ had this song on his computer, but w/no name...help!