Annge, I am sure you feel very upset, but do remember, that a young Mum, struggling with feeding and caring for new baby, looking after older sibling and going through all sort of post-pregnancy hormone changes can feel and say things in the heat of the moment, that they learn, later to regret.
I will give my own case - My third child was born a month early, so was sent to hospital and could not have a home birth. Other two children were only 3 yrs and 2 yrs at the time. Hospital was several miles from home, and as our car was unusable, hubbie hired a car to visit me. Then he had an accident in this car and begged me to come home. So I discharged me and baby from hospital - and that, itself, is another story as to how the staff reacted to this.
So, neighbour drove me home and Mum and Dad were there to greet me. I always had a very close relationship with my parents (particularly my Mum), even closer now the only other grandchildren were enstranged from them due to how my brother had treated his wife,
So, I just expected my Mum to stay with me for a short while to help me with older two children, whilst I properly established feeding with baby.
However, my big strong Dad was feeling poorly (he did turn out to have a heavy cold), and said that he wanted/needed his wife to be at home looking after him.
I was so angry at the time (Selfishly so), shouted that if they did not help NOW, then they would have nothing more to do with their grandchildren. My Mum left in tears, and I also cried.
This was early December, and they normally came to me for Christmas (which was also their wedding anniversary). They sent pressies for the children, but that was all. It was a sad Xmas although we did see hubbies Mum and family. I missed my Mum and Dad.
Early February, my Mum phoned me - I was so delighted and within days we had got together and put behind us those last few sad weeks. It was never mentioned again, and fortunately, we were able to have many more celebrations and Christmas's together before my Mum, and then Dad died a few years later.
However, silly as sounds, I still feel so very guilty about that missing Christmas. I totally accept the fault lay with me, expecting them (they were quite elderly g.parents) to look after my children (whom I had chosen to have). I would give a lot to be able to go back in time to 1972 and have that Christmas properly.