Your character MUST be on "jobs" to receive Valentines Cards

Calerock wrote:
I had characters receive 2-3 valentines at once.

Are you sure it's from one character? I've had multiple characters stacked in a building where it could looks like multiple valentines, but in my example above because of where the town hall is quimby is my most popular character for getting valentines and I have never had a multiple from him.