(((Hugs)))
You did the right thing and are, by no means, stupid.
I would make sure that you tell the police (again, and as often as necessary) that you are afraid of him....get the protection order if you can.
I'm sorry you are going through this. He is having to face the consequences of his action and he is going to strike out at everyone and blame them. Sometimes they don't follow-through with the threats, but it is better to be safe than sorry.
I truly hope they do keep him locked up for a long, long time.
Hugs and prayers!
Amy