The answer to your question for me is yes, if the cookies were sugar cookies with royal icing.
Previous posters have already said it and I would agree, something personal. What is your Valentines favorite? Chocolate? Vanilla? Fruity flavors? A favorite candy, desert? Brownies? Oranges?
You do not have to spend a lot of money, my. DH will often get me my favorite little something, one year a bag of Reese's, he fills up a little red gift bag (dollar store or our gift bag stash) and he will attach a note, one year he'll write a silly little poem, or another year he might write a list of ten things he loves about me. Silly things, like he loves it when I cry at the maxwell house commercial at Christmas. He loves it when I let him win at Wheel of Fortune.
Valentines day is all about the grand romantic gesture, not $$$$.