I don't post around here as much as I used to (which wasn't a lot to begin with...I lurk), but I had to respond.
Q, don't you know how to practice Dice Theory? You stop dating them at Thanksgiving and pick up again AFTER Valentine's Day. You get to miss:
Visiting any of her relatives at Thanksgiving and Christmas.
Buying her any gifts for Christmas or Valentine's Day saving you a boatload.
Conflicting appointments on Super Bowl Sunday.
etc
And you can:
Rock it with any chica who's home for the holidays and feeling lonely.
Or you could be a classy guy and all

. Either way, hold off on the VD gifts UNLESS you go out with her on that specific day. Or unless you hit it the night before VD.