That's the way I'm perceiving it right now, as crossdressing - maybe, if I'm looking at it from a more genderqueer perspective, that's merely me expressing another aspect of myself.
I suppose what I'm really trying to distinguish here are where the very fine lines between sexual identity, gender identity, and gender expression are drawn. In terms of my anatomy, and my role during sex, what I desire is purely female. When it comes to how identify, it becomes far murkier. I don't identify as a "woman" or "girl", even though I'll throw out those terms occasionally simply because that's how I'm perceived by everyone and because they're sufficiently synonymous with my preferred identity, which is nominally "female" though more accurately "not male", yet still not really androgynous.
I've never had any doubts about what I want with my body, but I've never been convinced that a female gender role really adequately expresses all aspects of my personality. Now, with the revelation that I can do whatever I want because I'm not living with my parents (like run out on a whim and get a haircut, or go to Goodwill and buy back the clothes my mother donated), I'm wondering whether I just want to crossdress, or whether I want to assume another gender expression and gender identity (but not, critically, sexual identity) some of the time.
As for life partners? Until about two months ago, I thought I was straight, but since then I had quite the revelation while going out with my boyfriend that I had no sexual attraction towards him whatsoever, and that I found myself attracted to other women (he did have such a cute personality, though! I loved spending time with him, but when it came time to get physical, I wasn't quite on board...). So I guess I'm looking at marrying a woman someday? It's a weird thought, but it seems more conceivable than marrying a guy at this point.