Is it likely that a narcissist's visit with his mother was a factor in a particularly harsh and confusing devaluing episode of a female source after he returned from that visit?
I don't have a definite answer for this. But I will say that although it may have precipitated abusive behavior towards you. There is no excuse for this. You cant wait around all your life waiting for things to get better so he will treat you right. This goes for anyone that abuses, whether it be an N or something else. Abusors have one thing in common they blame everything on others, and wont accept responsibility for their own actions.
Your N's mother may have laid down the law to him. Maybe she didn't take his Sh**! So then of course he had to come back and take it out on you.Such babies these N's are. Spoiled rotten!
One postor put it this way. They spend their whole lives proving their mother wrong by sleeping with every desirable woman they see. It still doesn't make their mother love them so they are never happy.
The second N I met years later and still work with everyday- He stated "NO woman will ever control me. I LOVE women but i HATE my mother" translation: "My mother hurt me. I want control over all woman to feel worthy." There were other red flags too over the last three years but this pretty much says it all.