Wow, lots of control issues there with him confronting you over the council tax and mortgage. Did he not get the memo about it being June and about him needing to live up to his promises to start repairing the marriage? I mean, I get that nobody likes being pressured, but these are promises that HE made didn't he?
Ugh, stand strong, and yes, nobody should be spoken to like that, I'm glad you called him out on his toddlerish behaviour and showed him the door.