I completely understand how you feel. Whoever said it was a living bereavement was right. I think just severing contact with grandchildren is wrong unless there is some abuse. It is cruel, not fair on the child or grandparent. What is so hard is knowing you can’t do anything about it, the instigator holds all the cards, you feel isolated and bereft. If you can, look after your own health and state of mind, be busy, get out and about, walk and join things, make a different life to the one you had. You have told them how much you love them, continue with cards and presents and hopefully, perhaps in a few months you can reach out again, hopefully things might be a little better and you will get a response. The longer it goes on the harder to reunite but it takes two. ?