Does this happen? There’s no example, information or education about this very specific dynamic out there.
I(43F) am convinced my spouse(44M) is one. We‘ve been together a long time and I’ve witnessed the transition from when we started from nothing to him being very successful now. The narcissistic traits grew over time, to the point it is unbearable now. He has also flipped to become the dominant one in his original family. The narcissist parent and golden sibling (also with strong traits and is used to being the alpha, she even rule the parents) tries hard to keep their outrage hidden in fear they will lose access to him and the financial support he provides.
My spouse has become his alpha sibling.
Resources for a spouse of a narcissist is aplenty but I’ve never seen any for this crazy triangle that I’m in or on scapegoat turned narcissist dynamic. I’m exhausted from holding boundaries and trying to stay sane. I‘m working on healing and do hope to leave eventually.