Part of romancing your sweetheart is being playful. I like to be silly at times.
Here’s an idea. Create two stacks of blank paper, one for you and one for your sweetheart.
Pretend you and your sweetheart are continents apart. There’s no phones, email, texting. The only way you can communicate is via airplanes.
Write your sweetheart a note on one piece of paper. Fold the paper into a paper airplane and fly your message to your sweetheart.
Now it’s his/her turn to respond via paper airplane.
You have my permission to have fun.