A bubble is one household so no rule breaking going on. An elderly relative some years ago lost her DH and announced to DC she would in future be spending Christmas on her own. She made it sound lovely- decs, m&s Christmas dinner to pop in the oven, feet up watching TV. Maybe that wasn’t the reality, and obvs you would rather be with family, but you will need resolve- and you have some super ideas. Keep firm, tell them o have a great day, say you are not going for the day whatever changes they come up with, and refer them back to your list. Maybe do a few things with someof them pre-Christmas too. Put a happy face on, rest up for your move, plan a few treats for yourself and you can think of happier Christmases with DH without everyone being concerned about you. Best wishes.