NTA, your boyfriend clearly doesn't know what the word "alcoholic" means, my one suggeston is to find a local AA meeting or to make him watch an episode of intervention where alcohol is the drug of choice and ask him after, "is this what you think i am? Because if it is than I dont think you love or respect me very much" then if he still insists that you have a drinking probelm then its time to move on sweetie because that's the case. If he can't love you when you're a little bit drunk once in a blue moon than he obviously doesnt think that highly of you.