Looking for one of Madeliene L'engle's early books, I come across this (
http://www.1lovecards.com/loveletters.shtml) a tutorial to writing a perfect love letter for that special someone in your life. Comical.
"The letter you write should come from the heart. Do not worry if you are not a professional writer, what is important in the letter is that you are sincere, honest, and caring. Some basic rules should be followed in writing the love letter...Here are 38 words that may assist you with forming the content of your letter: Alluring, Kisses, Embracing, Voyage, Blossoms, Stars, Angel, Lover, Elation, Sensuality, Heart, Giving, Darling, Rose, Absence, Seeing, Tasting, Touching, Holding, Caressing, Memories, Content, Lascivious, Beautiful, Gorgeous Vision, Privileged, Adoring, Velvet, Rainbow, Happy, Passion, Innocent, Dreaming, Delirious, Temptation, Complete, Desire."