Happy Valentines Day!
Not that it would be a special day for me but why not wish that every day for you is happy, so why not today also.
Valentines Day was my excuse to do a little web search on mathematics and love and these could be suggestions how a mathematician could spend Valentines Day date with the significant other.
It could start with a serious note discussing Mathematical model of love and happiness
and then reviewing A Heart Equation.. Or to follow some mathematician's has blog Math for Love.
To listen (or to read if hands and eyes are free) - The Mathematics of Love - a talk with John Gottman who started to study mathematics at MIT and first year was randomly paired with a roommate who was a psychologist.
Poetry Mathematics of Love is online but Strange Attractors: Poems of Love and Mathematics can be pre-ordered on Amazon (it was first published in 2008).
Weaving the World: Simone Weil on Science, Mathematics, and Love - uses Simone Weil’s philosophy of science and mathematics as an introduction to the thought of one of the most powerful philosophical and theological minds of the twentieth century. Weil held that, for the ancient Greeks, the ultimate purpose of science and mathematics was the knowledge and love of the divine. Her creative assimilation of this vision led her to a conception of science and mathematics that connects the human person with not only the physical world but also the spiritual and aesthetic aspects of human existence.
Charle's Darwin's great great granddaughter named her debut novel The Mathematics of Love.
Lily Tuckš book I married you for happiness is the story about mathematician's wife
Enough about love by Herve Le Tellier does not talk about mathematics but the author is a mathematician.
There is also CD called after its title song The Mathematics of Love
As for a card - may be this will work?:
http://imgs.xkcd.com/comics/useless.jpg
and this math of love I think everybody remembers since elementary school, may be this was the very first equation you learned:
If this takes you to more intimate note, then there is a movie Rites of Love and Math you can watch online
Former Oxford graduate student writes about Mathematics and SEX.
Whatever you do - do not forget real, dark chocolate, of course, because of its health effects!Here is chocolate truffle recipe from a blog Fat and Happy (I love this title!:-) )
After all - just in case you are up to it - can try binary code marriage proposal :-)