Hi Stace and welcome.
It sounds like your boyfriend doesn't have a problem with how much he drinks or what happens to him and your relationship when he does, but that you do (and rightly so). He may have a great job, lovely car and flat right now, but alcoholism is a progressive condition and until he commits to recovery, things will only deteriorate from here. The question is, how long do you want to hang on, hoping he will see the light?
I know it is tempting to believe that you have some control over his binges, but if he is determined to keep drinking, there is nothing you can do to stop him. Any control you think you have right now is just control he is allowing you to have. He is an adult, and sometimes we just have to offer other adults the dignity of feeling the consequences of their actions without any buffer.
If you are unhappy in the relationship, then please don't allow the idea that you are "helping" him keep you stuck in it, or the idea that he will figure things out any time soon. Look after yourself, and tend to your own happiness.
Sending strength and courage. Addiction is a beast, and doesn't make sense. It's hard not to take it personally, but it isn't.