Thanks @Ineedaslap. I've been pondering and haven't replied yet. It took him 4 days to contact me after our last exchange, despite my last message to him being to ask him a specific question about something. He clearly wasn't too worried about appearing rude.
It's a hard habit to break, the sense of needing to reply to feel 'polite' or worrying that he'll think I'm doing it to prove a point and therefore will think I'm an idiot.
However, I genuinely have other stuff to worry about at the moment, not least this insufferable endless waiting for this job offer to come through. Absolutely sick of it - told a week ago today that they were going to make me an offer, and since then, absolutely nothing from HR. It's getting to be embarrassing and is completely ruining the excitement of being offered it in the first place.
I really do recommend the 'Ignore the guy get the guy' book @Breakingupbadly72 - reading/listening to it on a loop to remind myself all the reasons why contacting them is a terrible idea.
My NC is a very decent person and has never been abusive. But he's not stepped up to the plate in terms of emotional availability and in my more optimistic moments I really do find it offensive that he hasn't valued our relationship enough to put the effort in. But they do HAVE to put the effort in, it's soul destroying otherwise.
I had a mini revelation today in that by learning how to shut down these 'not good enough' relationships, THAT'S how we'll shore up our self-esteem reserves to make us better prepared for the next time around. Each time the ending of a relationship sees us interacting with them like emotional wrecks, hanging on for answers, desperate for closure, it erodes my sense that I'm a strong 'good enough' person ready for next time. I'm absolutely determined this time not to come out of this feeling useless. It's his loss 