That is absolutely the way things happened in our home while difficult child was drugging. The more he drugged, the more husband and I argued. difficult child hated me because I was so strict and drew the line in the sand. He'd always give me the, "Dad said ..." which would, of course, start a fight between husband and I. It took a while for husband to realize that if we didn't put up a united front, difficult child would never own up to the problems as being his - not ours.
Good article, and very true.
Deb