Love Letters and Poems: Purging One's Heart Upon Paper

Have you ever given or received a love letter?  Back in high school somebody slipped a racy note into my locker.  I never did find out who wrote it but spent much time thinking about who might have.  My novel revolves around such a note including a painstaking poem, leading to a violent confrontation, as well as, the most intense sexual suspense imaginable!  This is the poem Jo Martini slips into Laura Needler's locker:

As seen in my dream, I confess

You thrived as a beautiful Princess

Upon a stately steed,

 Between supreme oaks 

 You paid no heed

 Cloaked by twilight

 Galloping at top speed 

 Toward a moonless night

 Your hair flowed upon the wake

  Of growing shadows along a lake

 In a mystical mood, I awoke 

And did conclude, the myriad ways

Of your vast pulchritude  

      Might never be sufficiently praised

      Though the universe of my heart 

       Would strive, utterly enchanted 

        If by chance a chance is granted  

Please share your experiences with love letters.  Would love to hear about them!