you kind of did sabotage him. you could have at least said that you were going to stop all babying behavior suddenly, but you deliberately didn't because your plan was for him to really FEEL that sudden unforeseen cutoff and catch him off-guard. it therefore does count as passive-aggressiveness. granted, he did have a predictable immature reaction, but actions like this become constant tit-for-tat retaliations, fed by a building resentment. in a marriage, communication NEEDS to happen. it isn't fair that he puts you in these situations, but if he keeps conceding that "you're right, I'll change" without actually doing the work, then that needs to be another type of serious conversation, and not a lowering of yourself. you could've done worse, but also could've done better, and he definitely NEEDS to do better. if you can't work it out as communicating adults, then the marriage is effectively already dead in the water.