This is complex, adrenalinejunkie, and there are many differing opinions even as to how you might be "categorised", and a language given to your emotional/sexual landscape, (and thus a path to political/social action laid out,) within the lesbian/gay/bi community.
I'm sure by posting in AIBU you'll get a range of opinions, but you might get more in-depth discussion (if that is actually what you want) somewhere else on the board. Though the traffic is slower, and you may have to wait a while.
There are also quite a few books on just this subject. I'm an ex-bookseller (from over 15 years ago!!) and can remember "Closer to Home", which would be useful, it has a chapter or two, iirc, on just this - but I'm guessing there must be far more up-to-date books around now.
I'd recommend seeing if "Gay's the Word" in London has a website, and having a look around on it.
Sorry I can't be more help, but my bookselling knowledge is a bit rusty!