I Could Have Told You  A woman warns another woman not to trust the man with whom she is now involved. Telling her " He'll love you awhile and desert you" etc." " For all of my tears, I could have told you so." The song is by Jimmy Van Heusen, Sinatra's favourite modern -day composer.
Sharon Clark sings with the appropriate rueful expression believing that forewarned is forearmed.

 https://youtu.be/j_Mw8l_UOxM