Just work it out so that you dont have to buy each other anything. It'll be mutual. Thats what I did with my girlfriend. Or build her cake or something.
the funny thing is, three people said they dont have dates and they were all girls...that shouldnt be hard to fix if you're into a sport that is mostly dudes, like skiing
HAHAHAHAHHAHAH how can a girl NOT have a date on valentines day, it's like, the best uber time to get laid and you don't even have a dude...man I'm getting my dude a super duper present, like waynes world style