I am VERY good friends with my first ex--who was a year sober when I married him, and has never taken another drink in the fifteen years we were married or the fifteen years since the marriage ended. He's probably my closest friend.
OTOH, my second husband, for whom I still have tender feelings, is still drinking to this day, and I have NO desire to have any relationship of any kind with him--no phone calls, no chit-chat, no birthday or holiday greetings. Zippo. Nada.
The only active alcoholics I have any interest in having contact with are those I work with in AA.