I don't play into that stuff. If she's right I'll admit it. If she's wrong about something I explain myself one time. Shell reply usually involving how something made her feel or how what we're arguing about is related to something else. I just say you're wrong and drop it. If she wants to sulk I giver her space to do it and don't let it effect my mood. If she starts repeating herself I leave and go do something else for awhile. Works pretty well. Even if you got a plate chucker this approach won't allow things time to escalate to that. You'll be gone and enjoying yourself and she'll be home all pissed off and dealing with the fact that her plan to make you feel like a piece of shit failed.