I've also been this way my entire life, to the annoyance of a lot of NTs. Now I'm cold to some NTs because I know they're that type of person, and it feels great. I wouldn't be doing that, but I've tried so hard to be friendly to everyone and when they are cold I just return the favor. Funny enough, some of them started to approach me after I became colder. Needless to say, I still ignore them when I pass them by on the street. Absolutely ridiculous, I tell ya.
I'm still friendly to any and all decent people I meet, but whenever you come across these people who have social filters you need to give them a taste of their own medicine.
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"If you want to make an apple pie from scratch, you must first create the universe."
-Carl Sagan