Dear Winecountry....KUDOS to you! Even though this has been a painful process for you, you didn't waste YEARS in denial! That speaks to your own inner compass. He was not willing to address his drinking to benefit the relationship, but that is characteristic of the alcoholic's stinking thinking. It is a progressive disease, so the guy you loved would show up less and less.
You are headed toward a healthier life. I would suggest you read "The Language of Letting Go" by Melody Beattie. It is a daily read that will help you confirm your decision and move forward.