No matter what he said about not being angry, your boyfriend's actions said otherwise. His responses to you during your phone conversation with him were hostile, detached, and defensive. You have offered your boyfriend help, and his words and actions clearly say that he is not interested in the type of help you are offering him.
It may be very enlightening for you to ask him just what, if any help, he wants from you for his drinking problem. He may claim he has no problem, his problem is under control, he's not ready to seek help yet, or that he just needs you to accept and love him exactly as he is. All of this will be useful information for you because each answer says that he is not willing to give up drinking--even for you.
Understanding where he's coming from may help you decide if it's healthy for you to stand by his side in an attempt to save him while he's prepared to do nothing. And while you're figuring all this out, Alanon and this site are precisely the kind of help you need to take control of this situation.
You do have control. Figuring out in what areas you do is the key.