I first took the MBTI test a couple of years ago and became slightly obsessed with it at the time, asking several of my close friends/family to take it as well. Ha!
I consistently score as INTP with a very high percentage in introversion. My partner scored as an ENTJ with a low percentage in extroversion, and I must say that our personalities do seem to fit together like a hand in glove. She totally gets my need to recharge after being in social settings with a lot of people. It literally takes days to recharge sometimes.
I am pretty sure that some people do read me as being aloof until I am comfortable enough around them to emerge from my shell. I don't like that I initially come off like that, but that is just me. Some of my very dear and very extroverted friends just don't seem to understand how I could possibly gain my energy from being alone. It baffles them.