SD has been mad at DH & I for about two months or so over stupid things & hasn't talked to either of us since. She just had her birthday over the weekend. We sent her a card & money (same as her sister) & my parents (who have never met her) sent her a gift card to go shopping. We got nothing in response, not even a thank you to my parents. DH is pretty heated about it and has mentioned not sending her anything for Christmas and I am torn about this. I feel bad treating the two differently but at the same time why should she expect to get presents & things with no acknowledgement of what we send and she isn't talking to us anyway. She is 16 yrs and should at least have some sort of manners....is it a bad idea to not send her anything?