Christmas alone

My daughter and son's family have both informed they will be in their fathers bubble this year . We have been divorced 10 years and in the past have ' shared' them over Christmas though none of my sons ever come to stay overnight at mine always preferring their dads place. Admittedly he has a much bigger house with ensuite bedrooms etc so why wouldn't they? But this year it really hurts that none of them even asked me if I would be alone and just made their plans almost secretly. In fact I only found out when I asked my son if I could meet up with him and he admitted that he was hiring a car and would actually be 3 miles from my house not 2 hrs away as I had thought. I am not sure how I will get through Christmas Day and will not even tell my friends as I feel such a failure . This has been such a horrible year due to a bereavement and Covid I am really struggling. I would love to hear from anyone in similar position to know I'm not alone at least.