Arthur and Ariadne
Arthur heard about the bonfire and decided to suggest to Ariadne that they go. He wasn't sure it was really the kind of thing he'd enjoy, but he was trying to push himself to try new and different things. So he suggested they go and spend at least a couple hours in the woods, in the snow, by the fire.
He thought it might be kind of romantic. Or it could be, if there weren't a gazillion people around. There was a decent crowd, but it wasn't terribly crowded when they arrived. "Do you want some hot chocolate?" he asked her once they got in and got somewhat settled.