During my husband's vows at our wedding he surprised me by adding to the end of his vows,  "I will love you until 2+2=3 and that is eternity." I was blown away.

One year later on our first anniversary, he decaled on our skylight above our bathtub, "Till 2+2=3 Love Me".  I see it everyday when I take a bath, and every day it makes me smile and remember what a romantic man I married.