My take on this...
My wife is a normie. She has one tall white wine spritzer each night. That drove me crazy at first, but now, she could be drinkin' a sprite for all I care... I believe that my immunity to her drink is a result of my program of recovery.... Anyway...
There wasn't a lot of co-dependency stuff goin' on... and if there was, it was mine. She doesn't completely understand the whole powerlessness thing, and she's never going to. She doesn't need to. I no longer need her to. Trying to get her to understand, would, for me, be self serving... as well as futile.
You could let him know about Al-anon, and such, and let him pursue it if he wants to. That's up to him not you, and on some levels, it's kind of none of your business.
Worry about yourself.
Welcome to SR Sherie!! Glad to have you.
Mark