I found that being in an alcoholic relationship was a lot like being in a bad car accident - even after the bruises have healed and that casts have been taken off, you can still be in a LOT of pain.
I went to Al-Anon for quite some time after my divorce because it helped with the "stinking thinking" that comes with an alkie relationship. Although I no longer go, I am immensely grateful for everything I learned there and took it forward into other areas of my life.