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Ooh, I so do want to contribute.
I'll say for right now I used to think you could be so blunt and out of left-field with your unsolicited comments and observations that I thought you were kinda mean.
Sometimes they were done with obvious humor and could be funny (partly in the way things are when you go, wow, I can't believe they said that) so I figured you just lacked that level of social propriety and awareness of other's feelings that comes more naturally to NFs. And/or just had a more 'blunt' sense of humor which is not uncommon IRL, especially amongst guys, and especially amongst NTs.
I didn't think you were doing it on purpose to be a jerk though -- or not as big of a jerk as some people might think. In fact I got the impression you were mostly oblivious to the fact how someone might personally take something you say. So, true to type in that way. :rolli:
But I don't think (like others I've seen) you get pompous or defensive about it, as if you are somehow above emotional peons and feelings are for losers or you are uncomfortable with this facet of your personality. You like honesty, but I think kinda like Whatever alluded to, you have a hard time distinguishing from your own personal truth and the objective truth. Oftentimes trying to 'analyze people' comes down to your own POV after all.
So yes, emotionally navel gazing in that way as someone said. I think you are very thoughtful, even sensitive, you want to live correctly, and as an NT it gets expressed a bit clinically -- like you want to 'correct' people including yourself by focusing on their actions and telling them to 'fix' them. But as you can see, people generally don't respond well to that (look at how unpopular Dr. Phil is!) especially when unsolicited. And people will disagree with you on what is actually broken or in need of correction, i.e. POV.
And remember, INTPs can get really stuck inside their heads on one-track loops and generally need someone else to pull them out of it. Perhaps what you're doing here? So maybe not so much narcissistic, just stuck on a loop. Narcissistic implies you assume you are better than everyone and are inherently deserving of more and better things in life. It's a little different from self-consciousness or the 'self-focus' that comes from therapy. But again, I guess it would be up to friends and ex-girlfriends to give a better picture!
Alright, I'll add more later! Time for class! Don't worry, I have more honest things in a kind, respectful tone to say.