It is more bad on him as a boss than on you as an employee in that he said discouraging things instead of praising you for what you are doing that is good. By his actions, your morale is low and looking for another job. If he was better at being a boss, he’d be getting more productivity out of you and that is the goal of his job. So, maybe you can reframe it to think that it is his problem and not yours.

Btw- I would not tell him you feel insulted or bring it up again…just my two cents.