Reimu writes a letter on a paper: "dear Meira: It has been long since we last (first) met, but I want you to know I still remember you. I've met many girls, and found myself tempted more than once, but I managed to stay loyal, with the memory of your proposal giving me strength. And yet I still wait for the day you come back to me, to keep our bows and live together for the rest of our lives. If you read this, you know where to find me. With love, your ever faithful wife, Hakurei Reimu"
She then folds the paper into an airplane and tosses it into the air, seeing it vanish in the distance, among the falling leaves...
(man, that ended up a lot sadder than I intended)