You have not been with this girl long enough to let her have Valentine's Day. She hasn't put in the tenure yet.
This is from an earlier posting but it's relevant for your situation:
Giving gifts early in the relationship sabotages what you're trying to accomplish. Gifts send a couple of messages.
(1) You agree that she is a prize and that YOU are trying to woo HER.
(2) You are trying to compensate for some lacking on your part with gifts.
(3) You are attempting to buy her affection.
As a side note, you should be aware that if you buy flowers, gifts, et cetera early in the relationship, then you damn well better make sure that you buy her flowers and gifts for every other trivial event or holiday that comes up. She will begin to expect things on Valentine's Day, Sweetest Day, birthdays, Christmas, May Day, Saint Patrick's Day, Veterans Day, Arbor Day, Boxing Day, April Fool's Day, Your Three and a Half Month Anniversary, Her Dog's Birthday, and so on. And each time you'd damn well better make sure that your flowers or gifts are better than the ones you gave before, or she'll think you're getting cheap.
Let's just not fall into that trap at all.
It's appropriate to give gifts on the following occasions, PROVIDED THAT YOU'RE IN A LONG TERM RELATIONSHIP AND HAVE BEEN FOR A WHILE.
(1) Birthday
(2) Christmas
(3) One Year "Anniversary" (do NOT celebrate monthly anniversaries)
(4) Valentine's Day
(5) Special event such as graduation
You may also give flowers when they are not expected just to surprise her and make her think you're wonderful. DO NOT over do this. Maybe once every three months or so.
DO NOT send her flowers when you have f*cked up. I know this sounds crazy, but sometimes a girl will purposely start an argument just to get flowers from you when you apologize (even though it's her fault). I've seen it done. Not pretty. In addition, giving flowers when you've messed up just confirms in her mind that you were a jerk. When she receives the flowers, she will not think "sweet guy" she will think "assh*le".
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CASANOVA
"And he used to say, with a great deal of truth, that a good remedy would turn into poison in the hands of a fool, but that poison is a good remedy when administered by a learned man."
Jacques Casanova
"It was ridiculous, of course; but when does man cease to be so? We get rid of our vices more easily than of our follies."
Jacques Casanova
"This worthy lady inspired me with the deepest attachment, and she gave me the wisest advice. Had I followed it, and profited by it, my life would not have been exposed to so many storms; it is true that in that case, my life would not be worth writing."
Jacques Casanova
[This message has been edited by Giovanni Casanova (edited 06-05-2002).]