We don't know the circumstances, whether it's her sons or daughters child but we do know her pain at not seeing her grandchild. The sister was insensitive but maybe not intentional.
I am sorry Ndizzy it's very hard for you and hope things change for you. I would say to some, don't judge you don't know what led to this.
getting to the point of "no return"
How do I help my sister to stop feeling like a victim?
Need encouragement in a difficult situation......
Yes your sister is insensitive. I agree that you should talk to your son about all this and ask him to bring his child to see you. 