David,
Romance at Walt Disney World offers you tons of options. I have a few suggestions here. If you don't find exactly what you want, or if you need more suggestions, just send me a follow-up question from my bio page.
Idea 1: Dinner Date
Sometimes simple is best. Take her somewhere special for dinner, but pick a place that has a nice view of nearby fireworks. A few suggestions include;
Expensive meal:
California Grill with a view of the Magic Kingdom fireworks
Moderate:
Big River Grille and Brewing Works with a view of the Epcot Fireworks
Economy: Stroll along the World Showcase at Epcot, snacking on little bites from the food stands. From there, just find a cozy spot for the fireworks.
Idea 2: Room Surprise
Get her some flowers or chocolates delivered to the room. Visit the
Disney Florists for choices.
Idea 3: Spa Date
Why not get a pair of massages at one of the great
Disney World spas? There are several choices and locations, but I recommend either the Grand Floridian, Saratoga Springs, or the Mandara Spa at the Dolphin.
Hope that helps!
Have a Magical Vacation!