Sometimes I meet this really hot guy and I'm like, chill chill. Then I realize he's got this "I've got a crush on him but it's a him" kinda vibe coming from him. A lot of the time, part of it comes from the fact that my gender identity is what I want it to be because I understand the fact that gender is a binary. In other words, I know who I am and what I want, and that's "crushable" compared to his FRAGILE MALE EGO!! Also, this disproves the sexual binary as well.
Humans should learn at this point that nature almost NEVER deals in absolute dichotomies. There is almost always more than two choices available (i.e. male versus female, which creates the gay versus straight phenomenon we see today). I would also like to contend that the "spectrum" (from gay to straight) does not actually move away from this binary. It simply makes those who believe in the binary feel better about yourselves.
I am pansexual and my gender identity is some form of "male". It is constructed of what my peers and I think and have constructed. I only accept the social constructions if I say they are good enough for me. HUZZAH!