Living with a bipolar husband

My husband of 9 years has just been diagnosed as bipolar.  I can't believe I did not put 2 and 2 together.  He has serious anger issues and I am the subject of his abuse.  He smokes pot to self medicate.  It is a very cyclical response.  3 to 4 weeks of normal behavior, then a few days of no sleep then anxiety and then the explosive and demeaning behavior.  Followed by remorse and then sweeping it under the rug.  I can't take anymore.  I told him if he does not get on the medication I am going to leave him.  I would love to have insight from my fellow caregivers of a bipolar diagnosis.