Hi welcome to SR. This place has tons of wonderful people.
You can't control his drinking
You can't cure him
You didn't cause his issue
AA people welcomed me but I did not talk, alcoholics talked and just by hearing them I learned a lot of useful info (especially what REAL recovery looks like) and I talked to them after the meeting. Also is there any chance you can move your schedule to be able to make it to the Alanon meeting? perhaps starting one hour earlier?
Online Alanon meetings
Online Al-Anon Outreach