If he only puts part of his in the account you could do the same. Did you have the same thing happening when your earnings were coming in - all yours and part his?
If he asks what you spend money on it does sound a bit controlling.
I have never had a joint account, with either ex hubby or my partner now. We just each pay for certain things and share larger amounts. I would always have to have some money of my own, just as OH has (and neither of us know each others balances).
Boris Johnson referred to the police for suspected further breaches of lockdown regulations.