Of course you didn't say or do anything wrong. You have lived with addiction 30 years and I'm afraid it sounds like you're living with it right now. Those dang pay checks, I think one test of whether an addict is sincere about their recovery is if they can handle money, or make a plan to have the money put aside. YOU are not responsible for his addiction or decision to use. Blaming you is a way of refusing to take responsibility himself, and it's abusive as well to belittle you because of his bad behaviour.
What you may want to think about is how long you are going to stay in a relationship that has become toxic? It's a good idea to make a plan of what you would do IF you chose to leave, or if he agreed to leave (rarely happens, he's secure in his addiction right where he is). Keep in mind that "leaving, is a dangerous time in many relationships and it's good to have family support with you at the time. If you make your plan, even if you don't use it, it will help give you courage to keep finding a way that works for you and keeps you safe.
Think about the next 5 years, 10 years and ask yourself if this is the life you choose for yourself. You have choices, as hard as they may be and as heart breaking as it may be to leave after all these years. But you can set yourself free, it's up to you, when the time is right and you feel ready.
Good luck, you are worth so much better than all this.