They’ll get there. Just give them a chance to get their feet under them.

Since they can’t help with the fire, they focus on towelling themself off. After a moment’s hesitation, they peel off their scarf and jacket, leaving just their shirt and undershirt which are both still dry enough, aside from around the collar and at the front. “Nah, this’ll do. Thanks, though. You want to go put on sommat dry and I’ll deal with that?” They gesture to the fireplace, even though they’re not sure they can. It can’t be that hard, right?