I kind of sit on the fence when it comes to the Thinking/Feeling part, but I'd say my default setting is INFJ. One of my INFP friends, who's a guy, said that I was more of an INTJ. I tend to urge him to be a bit more headstrong and if someone says crap to him that he should just deal with it in a way where he recognizes that their opinion does not reflect his self-worth.
My previous relationship, my bf at the time said that I didn't express enough emotion for him to tell if I really cared about him. Deep down I did, but I suppose I was a little uneasy around him too.
I have a tendency to get a bit logical and value empirical evidence for things. I think being in the science field, I value evidence, and I like knowing the purpose behind things. Yet, at the same time, I can be quite sensitive around people that matter, particularly friends, family, and romantic interests. I tend to reveal my deepest emotions to a select few. I don't like to get too worked up in front of people. Yet, I'm deeply empathetic with people.
A lot of my peers in school ask me for help on hw and other projects because I'm competent and confident about what I know, and what I don't know too. I can be a bit strong-willed too.
Perhaps having strong Te/Ti along with Fe has something to do with it. Or perhaps Te has gotten stronger as a learned defense mechanism.
Maybe I'm some weird INFJ/INTJ hybrid. Call it INWTFJ, I guess.
If you guys want to try to break the tie with some questions, have at it, I don't mind. Do any other INFJs experience this?