There was this couple on a date at the zoo. The guy tried to impress the girl by imitating the monkeys. He swung from one bar to another in the monkey enclosure (luckily it was a safe and allowed area). The girl couldn't stop laughing and was also touched by his effort to be so goofy and fun just for her.
Sure. There was a couple who got lost while hiking. Instead of getting frustrated, they made it into an adventure. They found a beautiful meadow, laid down and started making up stories about the stars being their personal constellations. It was so funny and romantic at the same time.
Here's one. A boy was too shy to confess his love directly to the girl. So he sent her a pizza with the words 'I love you' written in pepperoni. When the girl opened the box, she burst out laughing and then called him right away. They are now happily together.