This article in Details is a bit of a head scratcher: What If You Only Thought You Were Gay? Perhaps the author has recently arrived from the nineteenth century. The early nineteenth century. Or an alternate universe. The concept of bisexuality (not to mention polymorphous perversity) seems to have passed her by.
Or perhaps bisexuals have availed themselves of the latest invisibility technology. (For a truly interesting conversation about invisibility, visit Kelley's blog, and do read the comments.)