Fairylights, I believe you are SEI as well. Just as a quick heads-up... don't bother arguing with Maritsa on this forum... that will save you hours/months of your life.
First impression was SEI, I agree with Traveler, Ne/Si ethical introvert, then considered EII as others suggested. But I'm just not seeing it. Fi leading types, EIIs and ESIs, tend to be much shyer, more to-the-point, and less expressive. Here's an example of strong Si:
Practically textbook Si. Also, I want to point out the following quote, as it's a great combination of Si+Fe:
This is HUGE Si+Fe. SEIs really know how to set a mood, an environment, to help them feel better: coffee, music with headphones, describing the period, the aching in your fingers, all physical sensations...
That, plus your love for things aesthetically pleasing, gives me huge reason to think Si leading.
Also, notice how creative and LONG your writing is. An ESI or EII doesn't write in nearly that much detail!
Also, your vivid style of expressing yourself also reminds me some of BnD... Bullets and Doves, Sam, who also enjoys writing. You share Fe, are expressive. Your joking about crying, 'sobbing', etc. You share your emotions very easily.
Like others mentioned, he may be ILE, and you two may easily be duals. Generally, it can save you months of frustration, to focus on typing yourself first, getting that right, before basing your relationships with others off of an ever-changing view of yourself.
Especially, if both of you are fairly new to socionics... I see just joining the forum this month, February 2012, in the past 6 days... take some time to get to know the functions. When you say 'Te POLR doesn't make sense for me, that can't be it'... do you know what Te POLR means? Sometimes it can take 6 months to know the nuances of the functions.
What I'm saying is keep an open mind. Especially if you're brand new. Some of us have been studying socionics for years, and have a lot of experience with typing people. Of course I'm not saying we're perfect... I may be wrong with SEI. That's always a possibility. But in my opinion, SEI makes a huge amount of sense at this point in time.
No strong opinion of your boyfriend after seeing a handful of posts... would like to see more to confirm a more accurate guess... but most obvious is logical...
But as for you, I say SEI.
Hope that helps!