My boyfriend is an alcoholic....

I'm dating an alcoholic..... I've been with my man for a year and I knew he liked to drink but the past few months have been too much. He has called out when he is hungover, has had me drive him into work because he cannot drive. We are fighting alot more and this is when he is drinking. He recently lost his job and instead of doing what he says he will do to find one, he goes to his buddies and drinks... he recently told me that besides me, the only thing that makes him happy is drinking.... he rather be out all night drinking with his friends (even on work nights) instead of doing what he needs to do. He rather drag me out with him and be DD, Even though I have school the next day (I'm a nursing student). He says I don't like him hanging out with his friends but no it's the drinking and not being mindful of me and our relationship. He finds drinking more important than anything else right now. He drinks EVERY single day! Today I refused to go pick him up, I refused to be there and watch him just drink away his problems. It broke my heart to.... but he needs to know what he is doing. Even his family says his drinking is out of control.

I just do not know what to do..how do i help him? I know I allowed it but when is enough enough? He has so much potential yet he won't reach for it....