Unfortunately, he does drink too much and yes he is an alcoholic. As painful as it may seem or will be, it is necessary for you to break off this relationship as it will only get worse and he will drag you down with him. There isn’t anything that you can do as this is a disease and professional help is what he needs. You cannot be his lover and his therapist at the same time. Leave that for the professionals. If you were to ask him which does he want..you or the alcohol, I am afraid his answer won’t be you. I know. After a 10 year relationship, he choose the bottle and I had to end the relationship. It is difficult to walk away from the one you love, but in the end, you are worth much more than what he is offering you. You are young, so don’t waste these years trying to succeed with someone that will only bring it to a sad end. Use this time to heal, reassess your own values and look for someone that will meld with you. Wishing you luck and a new relationship that will honour and love you for the wonderful person that you are.