I betcha it's not as awesome as this one sent about 100 years ago by William Weightman. He wrote the entire thing in rebus (for example, the word "dearest" is formed using a picture of a deer followed by the letters "est.")
That's just one of 7 fascinating love letters in this post by Shaun Usher (the guy behind deputy dog and Letters of Note blogs)
From the Upcoming ueue, submitted by Eavesy.
It may include some bribing...
Dearest Judy,
Sit on my face.
Love Pete