Your Son's last memories of living "at home" , included what normal MLC B.C. behavior ??
8 years would put him moving out right before the bomb.
So what his perception of home life is, has remained the same (although he knew what was happening) , and your view ( and daughters) of that daily living, has changed. Only in a different direction.
You aren't the same Mom that he last lived with, and neither is your husband, the same Dad that he last lived with.
So maybe he expected things to be like they were back in '05? '06 ????