I'm an ACOA and my A Mother is an ACOA (her father was an A and mother a codependant) and I spent 8 and a half years with XABF who was also an ACOA (his father is an A and mother a codependant - two of his brothers drink to excess). My brother and I are both codependant people, probably well learnt from our codependant Father and Grandmother, neither of us drinks very much, but my brother did have a drug problem for a while. I am now with a man who has never drunk and I am abstaining at the moment due to contraindications with my meds.