How To Write A Love Letter On Your Wedding Day . Here is a letter from bride to groom on wedding day “ {name} you are my best friend, my proctector, and my lover. I promise to keep the adventure and spark in our marriage alive. 5 Things to Include in the Wedding Day Letter You Write Your Partner from www.brides.com Express what you truly feel, unabashedly profess your emotions, and be honest. You alone have all of my affection—the affection of my heart, of my mind, of my eyes, of my lips, of my hands—all that i have and all that i hope to be is yours and yours alone. Avoid creating a list dot points are simple, succinct, and to the, er, point.