Could he be right?

I have been 4 days NC. I am analyzing everything that brought on the recent D&D. I had also read a post here listing things an N would text, and I had texted my N similar things. He called me selfish because he is busy and when I text him expressing my love, I didn't hear from him so of cOurse I text is everything ok? Are we ok? Etc. he got pissed that I was expecting him to answer my texts. So today I thinking that maybe I was at fault, that I got too emotional as I was PMSing badly and I do get like that (very sensitive and emotional), and now I feel if I controlled my emotions and didn't go over the top lovey dovey that he wouldn't have D&D me. And in reference to the post about texts from an N, now I wonder if I am one. This really stinks. I hate thinking he is right.