Awwww, Annie, that stinks.. You are not the only one suffering...so is your Grandson. Loving Grandparents are very important in a child's life and growing up.

It sounds like DS and DIL, need to grow up a bit. If they have a beef with you that's one thing, but, using your Child to punish, is soooooo wrong and sooooo immature..Grrrrrrrrrrrr!

A talk with them is deffinately in order, before too much damage is done.

Good Luck..