Welcome to you, glad you are here, I hope you will find your way to counseling and al-anon, both will help you gain knowledge about alcoholism and co-dependency which is critical to making sound decisions.
I get that you love him, but remember, the person you love is not who this guy is, he was on something the whole time you were together, the longest he has stayed sober is 90 days, the alcohol and drugs still have a hold on his brain. There is no telling where his head will be after a whole year of recovery (no slips).
You need to work on your recovery and let him work on his, if (and that is the key word here) you both get yourselves to the right place, then you both will have the blinders off and can make good decisions about relationships.
I hope everything works out for both of you, if you need to talk, or you just want to come back and rant at him, lifes unfairness, whatever, this is the place to do that.
Best of luck to you,
Big hugs,
Bill