Hi Confused!
Welcome to the forums. You're in the right place... support-r-us! There are a number of folks here who have endured tons of crap from addicts and alcoholics and still find it in their hearts to care about what happens to them. But while you may be able to support him and be a great one woman cheerleading squad... outside of that you can't help him. Please don't let "Underdog Syndrome" draw you in. (You know... everybody hates him... I'll love him... that'll save him.) It's okay to love him, but making a physical separation from someone who has been violent with you is the best thing you can do.
Look around the alanon and naranon pages... especially at the "power posts". They're just some especially helpful contributions from our members. They'll help you to know what alanon and naranon are all about and give you interesting things to think about. And think about getting yourself to a local alanon meeting.
Hugs!
Smoke