How NOT to write a love letter
Reader's Digest has a short feature this time on "How to Write a Love Letter." Here is one of the examples, verbatim:

Use Simple Prose Leave flowery talk like "How do I love thee, let me count the ways" to the Brownings. Write in a natural voice, such as, "I've never been as happy since the day I met you."

Yeah, a heartfelt message like that should really endear your sweetie to you. I may not be sappy, but even I wouldn't claim DOB has made my life less happy.