Joke Collection Website - Talk about mood - I received a letter, but there was nothing written in it. What does a blank sheet of paper mean?

I received a letter, but there was nothing written in it. What does a blank sheet of paper mean?

If it's the opposite sex

That's a love letter.

Wordless love letter

There is something in the past, not that there is nothing to say, but that all the papers can't finish what they want to say, so be careful and cherish it.

If it is the same sex, then I don't know.