breakingglass,
I would gently suggest that this has moved beyond the blame game. Following you, screaming at you, blocking your escape...these are physical intimidation tactics. Bullying. Abuse.
The only way to win the blame game is not to play. (STAR, walk away, take some time to answer, decide not to answer).
The only way to end the abuse is to get away.
I hope you will think about this. We were physically separated for several weeks before I was clear enough to see his tactics for what they were.