The screen legend, who passed away in 2011, had penned the touching note to mark their 10th wedding anniversary in 1974, just weeks before they split, and three months before their first divorce, reported Contactmusic.
"My darling (my still) My husband... I wish I could tell you of my love for you, of my fear, my delight, my pure animal pleasure of you - (with you) - my jealousy, my pride, my anger at you, at times.
"Most of all my love for you, and whatever love you can dole out to me - I wish I could write about it but I can't... Anyway I lust thee, Your (still) Wife," Taylor had written in the letter.
The couple remarried in 1975 and divorced for a second time in 1976. Burton died in 1984.