It's so very sad that people can be so heartless and using the control over not allowing grandchildren to see grandparents. The parents don't even consider what they might feel like if it happened to them when their children grow up.
As a therapist I see many women who report the same thing. They come to the conclusion that they have done a good job raising their children, so that's enough, and now it's time to get on with their lives and make the most of it. No use them destroying their own lives through selfish people.
The thing is, when these thoughtless children have a parent who they have estranged themselves from dies, they seem to think they won't feel anything. It is not true from what I have experienced. They often feel dreadful that they did not resolve their issues. But it is their problem and not yours. Do your very best to stop being so sad. Imagine they are in New Zealand and you just don't get to see them, but you wish them well. This is not a platitude, just helpful suggestions that have helped people I see enormously. Hypnotherapy often works faster than CBT by the way. If you can afford to pay privately, then have some sessions. A good therapist will help you feel so much better. If you have time, volunteer to help children in some way. They may not be your grandchildren , but many children need support from the older generation.
When Is News Not Really 'News'?
When a political leader lies on their CV - can you trust them?


I will only see my once beloved youngest daughter and my precious GC when my D & nasty s.i.l break-up. He is my GD stepdad and he & his equally evil mother, cut me and the rest of my estD birth family out, through jealousy, no other reason. I had a very special, sweet & loving bond with my GD, as she & my D lived with me before he came along.
for you both and God Bless xx
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and lots of good wishes, we are here for you.