You sound like you have the correct perspective with regard to yourself. But perspective can be fleeting when there are so many discractions.
I can tell you that I am in an 18 years relationship. We both got to be drunks and addicts together. I recognized years ago the issues but he did not.
I went to rehab for him thinking I was doing the right thing. That was all wrong. I can only go for me.
You already know, way ahead of when I did, that this is and only ever will be about your life.
My partner and I are now in synch and are working hard together at a new sober life. A strong bond will prevail even over additction.
But keep the focus on you and when he see the positive changes he may swing your way.
All the best to you.