SamC, yes, it does sound like you are unwanted. However, don’t be hard on yourself, you are definitely not inadequate. It sounds like you have a lot of love to give to your grand-daughter but it is being rejected. The problem is on your son’s side. I’ve just finished reading a book which you may find very useful, or at least, you may find a lot of comfort in by reading of other people‘s stories of estrangement by adult children. It’s called Done With the Crying, by Sheri McGregor. I hope you find it of use. Take care.