Let your son handle this one-what a spot to put you in!
My sister in law pulled this when my son was still drinking--Invited everyone but didn't want my son to come--I was pissed-I told her -you tell him I am not...plus he never drank at kids parties ever or made scenes ever and his little cousin worships him--which has always been a positive thing for my son--I found it interesting that there are 2 alcoholics who make scenes every holiday etc that she did invite!!!!!!
I did not go-none of us did.