How would you handle your WS throwing sex with their AP in your face during a fight?

Your spouse cheated, during one of the many fights you have about everything wrong in your relationship, the cheating included...as a form of relatiation for bringing up his/her cheating again, the WS says "Yeah I ****ed her/him, it was great, I f*cking loved it." How do you react? Do you blow it off as them just trying to hurt you or do you lose your collective sh*t? Especially if they say they absolutely didn't mean it, only did it to get a rise out of you. This happened to me, described it in my thread in Sex in Marriage...I did the ugly psycho growly screaming thing. Would that be a deal breaker for you as the BS trying to reconcile..having the AP thrown in your face like that?

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