Okay, well first, I am not mistyped. I am an INTJ with strong intrversion (probably moderate if anxiety weren't a factor), moderate thinking and intuition and slight judging. This should explain the psychology behind what screwed up thing is going on in my mind with my infatuation over this person, who is awesome.
I don't know that much about the functions yet so I found some resources to help me.
Deciding if something is of worth or significance, valuing something or someone. Is expressed in the undercurrents of tone or action rather than words or gestures. Protecting one's values, detecting insincerity. Introverted feeling causes us to feel kinship with others whose values and beliefs are like our own. "
This is something I experience a lot, and it's probably over-developed. I am quite concerned with my values and ideals. And this person shares my values and ideals, among other things. I feel very close to my immediate group of friends, who I can relate to well, and at this point, where school has crushed my motivation for anything to do with it, my friends and relationships are of great concern to me. This doesn't make me extraverted or a feeler. It's just Fi and an anxiety-created lack of human contact in general. I spend my non-school time at home on the computer because I am too afraid to ring someone up and ask them to go do something (and yes I do realize the stupidity of this and I hate it). I rarely ever express my feelings either, so not much in the way of Fe. I am very socially clunky with those who do not get me.
Experiencing the immediate stimuli. Being active in the physical world, being aware of changes and opportunities, accumulating experience, noticing visible reactions, recognizing “what is”. There is no reflection, but only pure experience. Seeking excitement of the senses. Extraverted sensing is used in the here and now to explore and adapt to the physical world. Examples include eating chocolates, playing an instrument, or reading... strictly for enjoyment."
Unlike the INTP I have fallen for, who seems completely oblivious to many things including my subtle suggestive choice of words and expressions, I often look for signals from the outside world (which I then disect in detail with Ni). I can see that if not hidden, which it almost always is, this could come off as clingy, and since I hide nothing (or very little) to the internet, I would appear clingy. And in response to your 'cuddly' thing, yes, I do like hugs, not so much from fellow males, but from females I am close too, especially this one. But I rarely do hug anyone, as most of the time I am uncomfortable with it, so I have restricted myself from hugging this person, who is less cuddly than me, and it would just be very weird if I did.
And like I said, I also break everything down to understand it using Ni, and I am always organizing information with Te.