I would advise her to make a visit to a skilled couples therapist on her own, with the goal of strategizing with that person--preferably a man--on how best to gain her husband's agreement to come to counseling with her himself. She can't just let the violent attack pass without consequences without risking the continued decline of her marriage, and it's possible that his own life could decline as well unless he seeks and gets psychological alcoholism treatment. Since her life and satisfaction are tied to him, both issues are of paramount importance for her. And getting a skilled professional's help even before she responds assertively to her husband is the best way to proceed for maximum likelihood of success. If you think her potential capabilities for advance interviewing and choosing a capable therapist may be limited by her present condition, you might do some preliminary inquiring for her; that would also smoothe the path for her to trust in consulting a professional by herself. I'm happy to discuss this further if you ask more questions.