How do you react to the narc fits?

Curious to see how everyone reacts when their narc lashes out.

There are times where I feel like I handle his outbursts well. For example, keep a calm voice or just don’t respond, but it’s so hard!

Like how am I supposed to just listen to him go on and on about how terrible I am and just take it? I typically get overstimulated and just try to get away, or I will just cry because of how he’s belittling me.

Tonight, he got upset about one thing, completely lashed out, & then somehow ended up belittling me because I’m dealing with infertility & my friend just found out she’s pregnant. So he was acting like I was the one causing my infertility when it’s my PCOS & Endometriosis. 😣 Made me feel awful & I just had to get out of the conversation.

How do y’all respond in order to stop the outburst? I can’t take it!