gatewalker so are you saying that he knew we lived together as a couple and he knew we went through 2 rounds of IVF but he then denied all of that as it was in his nature to do so? In his mind that was perfectly acceptable?
Yes, that's what I'm saying, Morley.
To someone diagnosed as being a narcissist, no-one else exists in their own right; they exist purely as an extension of them - hence the name "narcissist": from the man who was transfixed by his own reflection. That, to them, is "love". That is the love they know. They're not lying when they say that they 'love you'. They are loving you as an extension of them.
If you behave in any way that defies this belief, the existential angst and annihilation of having lost a part of themselves is unbearable.
It is at this point of perceived loss that they will turn and fight to the death - psychologically speaking. When they are in this mode - when they are fully identified with themselves as the centre of their own experience - the utter destruction of the other who they perceive as having betrayed them (as they were betrayed originally in reality) is their only option for survival.
They are doing everything they can to safeguard their survival - because that's what it feels like. Without it, their ego would shatter and that, there, is the annihilation that they will do nearly anything to avoid. They know on a primal level exactly what that annihilation did to them in the past.
I write this not so anyone feels sorry for someone who is narcissistic, but to try and understand them better. To go back to my scorpion analogy: I love them for what they are; I would never pick one up and kiss it.