It’s the lack of reciprocity and apathy that makes you realize how little regard someone has for you, but the running commentary, loaded with judgmental statements, that highlights the entitlement they feel about their spot in the hierarchy (in their mind). Pulling back & doing less is a first step in defeating resentment! Maybe that’s part of your increased happiness.

Good luck. It’s not fun to be treated like someone’s inadequate assistant when you are in fact, a founding partner.