Blaming his decade long grudge and plotting against and undermining Oppi on some one-off time Einstein blew him off is typical narcissist behavior. That was not why he was mad.
>>213848274
He was jealous of him and also Oppi humiliated him one time at a hearing. Oppi went through the world with the kind of arrogance that was bound to really upset some kind of mentally ill narcissist eventually.