Snickers I commend you for getting out of a toxic situation.
Physical abuse is a deal breaker. Without mutual respect ,a relationship cannot thrive
The writing is on the wall, he cannot hold down a steady job, The addiction is currently ruling his life.
I am sorry for what you have been thru, and perhaps the silver lining in this can be that you have only invested one year of your life to learn what an unacceptable quality of life we live when we allow active addicts into our intimate circle.
He is an adult, he gets to address his life issues. You are correct, he needs help, but he has to want help. There is no genie in the bottle granting wishes in this equation. Our love for them cannot wish this disease away.
Keep posting, it helps, we understand.