When you are chaperoned, who acts as the chaperone? A man? A woman? Why would anyone give up their evening to sit chaperoning people?!?
I'm glad we are helping you decide what you want to do.
The chaperone is usually not a person you call up and say, "Can you chaperone us tonite?". Its more of a dating in groups of people.
If the couple wanted to hang out, they would need at least one other person to be around them.