Nah, that wasn't financial abuse. It was him just being a twatbag and neglecting to let me know to pay the rent from the TC's. he bought nicer food and told me he'd had a bonus.
After we split up, he admitted he just missed lamb chops and steak too much after 3 years of not being able to afford it. And he bought for all of us, not just himself.
So not financially abusive, just financially fucking incompetent!
(He was abusive in other ways, but not financially. He is just a twat with money.)
Which was why we didn't have joint accounts. Because at least then, I could cover the majority of things from my account, he only had to pay the rent and give me the money for the bills. He was still giving me the money for the other bills, but our rent had to be paid by DD, and I can't do DD's from my account.
He was missing nice food, and spent the rent money on steak for us all, and lb roasts and beef roasts. Because I didn't do roasts as they were out of budget. 
TWAAAAAAAAT.
And he was working.