Yes! I have been exactly in that situation. You are lucky in the fact that you are NOT married to him and NOT living with him. Get away as quickly as you can while you have the clarity and strength you need to do so. I don't want you or anyone to end up in a situation such as mine.
When someone shows you who they are, believe them the first time!!! Listen to your gut instincts! Trust yourself.
His behavior has NOTHING to do with you! It is his "stuff" and you cannot fix or change it or him!
Go do something for yourself! Block his calls, change your locks, and go find a life for you away from him!