I agree with another poster. NTs seem to have an addiction to constantly socializing, and can't comprehend that some people may not care for being social to that great an extent. They also can't comprehend that being non social may not bother us. They automatically assume we are unhappy being non social, and will try to "bring us out of our shell", not realizing, and not being able to understand that too much socializing is what bothers us.
I am an introvert, and am fine with that. I really, really don't care to socialize much, even on a casual basis. Unfortunately, my NT father is an extrovert, and is convinced that I am miserable because I am an introvert. He also believes that if not "fixed" it will develop into a form of mental illness. I am in my early 50s and have told him many, many times over the many years of my life that I am fine being an introvert, and he still doesn't believe me. AAAAAHHHHH!! !! ! Fortunately, I live alone, so I can be introverted in peace most of the time.
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau