Questions and admitting I had struggles.

I have had trouble maintaining NC so am starting again today. But it gets longer and better everytime so that is a good step as i see. My question is do you find the NARC's words and actions are contradictory and never match?

For example in the past when we first broke up and he was mad, he said "do not text or talk to me anymore"(we work together but in different offices so it can be hard as we do have to converse on the odd work matter...thank god only the odd one). So I listened and was fine. And then he starts texting. So I fell off the wagon the first time i tried NC and texted back. Then he does not respond. Then he tells me to avoid him again. So I do. Then when he sees me in the cafeteria a few hours later, he decides to walk with me up the stairs to our floor and opens all the doors.

I find all this makes NC hard to maintain not to mention I have a great job that I had to compete for a year of interviews and a Board panel to get so I am not going to quit just because of a 2 month affair I had with this Narc that I ended. He is married anyways and still with the wife as she took him back so should just focus on that.

Anyways my question is just has anyone else ever broken NC for this reason (the actions and words of the NARC were completely opposite and often what he said he wanted to do or not do was the complete opposite of his actions in the end?)