Mum died a few years ago. Xmas before usually consisted of her, stepdad and their very annoying friends who seemed to think monopolising all their time whilst sat on their arses watching mum do all the work was fine. Whenever they visited. At least three times a week when I stayed.
Far too many Christmases spent watching them and stepdad expecting me and mum to work our fingers to the bone til we dropped.
Now that she's gone I no longer have to be fuming at my awful stepdad or those people all day. Adult children, the lot of them.
Our oven has started to go on the blink and we don't want to buy yet another one in this rental, so I think we might take ourselves off to a fancy hotel for Xmas. Our last oven went on the blink just before Xmas, and whilst I cooked (for 18 hours iirc), it took up the entirety of Xmas eve and the food wasn't worth the effort for the two of us. Standing is hard for me so I was broken all of Xmas day.
Failing that: bed picnic. Smoked salmon and scrambled eggs with bubbles for bfast, cold meats, cheeses, pate, shove in the oven baguettes and enough olives to make us turn green. Whatever the cheesiest thing is on telly. Or maybe we'll rewatch the Hunger Games Trilogy. Perhaps a game of monopoly if we are feeling particularly racy.
But, for the most part, doing as little as possible. And - not in bloody France!
I hope you manage to have a nice time with your relative OP. If it's getting stale and making you a bit sad, perhaps introduce something new to the day? Going out to eat, a new board game, finding an amusing silly topic on YouTube that makes you both giggle for a while.