Hello life,
Welcome to the forums! You're not crazy. He may not be either. He may just be an alcoholic. He must think so, or he would not have gone to AA. Who knows what his sponser actually said. Alcoholics in recovery are encouraged not to begin new relationships for at least a year. Maybe it was that. It must be very difficult seeing him every day at work.
I would encourage you, if you've never been to an alanon meeting, to give it a try. With your family history you may have picked up some bad mental habits that draw you to these needy people. There are also a lot of great books out there about codependency. Look at the "power posts" at the top of this forum. There's one called "book club" and it has a list of reading material recommended by our members.
Keep posting!
Hugs,
Smoke