All you've talked about are abusive behaviors and leaving. These don't make a person bipolar. Sometimes a person with bipolar disorder might do these things. Alcohol misuse can minic bipolar disorder.
Without a diagnosis, I would consider him an alcoholic who is emotionally abusive. I hope that he can get and stay sober so that it's possible to see if he does have underlying mental health problems. See this is so complicated, there's no way someone can diagnose or suggest diagnosis online. Bipolar disorder is no excuse for abusive behavior.
You need to protect yourself, financially, emotionally, safety. Then you may want to start charting his MOOD, using a mood tracker like the one found on medhelp.com. You'll need to include on there a note for days he drinks. This information would be VERY helpful once you can get him to a psychiatrist to find out what is wrong.
Bipolar Disorder Forum Moderator
Bipolar 1, Borderline Personality Disorder, Panic Disorder, PCOS (hormone disorder).
Lamictal 200 mg, Seroquel 400 mg, Lithium 1,200 mg, Klonopin 1.5 mg as needed.