Is he waiting to propose? How much are you waiting for? You could be the one to propose to him. Today is the right day. It comes once every four years, on a leap day, February 29.
"Leap year", as the Anglo-Saxons called it, is the only year in which girls can propose to the boys they love, and the appropriate day is the 29th.
The story originated from an Irish nun, St. Bridget who complained to St. Patrick about the fact that girls had to wait too long to receive the proposal. So he allowed them to have this right once in four years. A film titled "Leap Year" was made on this topic, which you can watch. Why not?