Passive-defensive
Acting as totally oblivious to others' passive aggressive behavior.
Looking at a shared dinner bill, "Man, I cannot believe how expensive the dinner was. This sure isn't helping me pay my rent."
"Yeah, I know what you mean," Eric said passive-defensively. "So, your half comes to $28 plus tip."
"Yeah, I know what you mean," Eric said passive-defensively. "So, your half comes to $28 plus tip."