We are not in our "right mind" when dealing with an active Alcoholic. We get caught up in their lies, their fantasies. We take on their blaming, etc.
He is trying hard to "control" his addiction...that will fail every time. He can't control it by deciding to drink on certain days only, drink pre-determined amounts only, drink certain types of alcohol. Addiction is Addiction. Alcoholism is progressive...he will only get worse if he doesn't get into true recovery. His thinking that it only affects him is bull, it affects everyone around him. But that's part of his denial.
There is nothing you can do about his drinking, or his denial. But you CAN decide what you want for YOUR life. I'm assuming from your post you don't live together. You are still free to make healthy choices for yourself. You're only a year in, not a long time when you look at the big picture of your life. He sent you packing....that's a gift. I would suggest you stay gone...and focus on you. You deserve a healthy partner that can put you and your relationship first, that won't happen with an A. Alcohol will always be first.