Murphy 1 - If I didn't know I didn't write your note, I would swear I wrote it !! I have a son who has broken my heart also and I have the DIL from Hell...I have 3 grandchildren who never respond to Birthday Gifts, Christmas Gifts, etc., so I have also decided that I'm done this year.
I have another son and a daughter (whom I live with) and other grandchildren who love me and are grateful for the things I send them or make for them. Sometimes we just have to leave it in God's hands and move on. I feel your pain and share your feelings....