My loss is unbearable please tell me if I have hope
Your son and his wife are extremely jealous of your close relationship with their daughter and I don't see them getting over this anytime soon. Their feeling for you borders on hatred and they will indeed try to poison the child against you. But in her heart she will know the truth as she really is a very astute child. She will seek you out by herself when she is old enough and will not be permanently damaged by her parents' treatment.