Sharing a bedroom with a roommate you’re not sleeping with is actually kind of weird, no matter what the gender of the people involved. Hotels, emergency crashes, and college don’t count, of course. (I’ve been assured that college doesn’t count for many gay-related questions, actually . . .)
Having a close non-sexual friendship with a member of the opposite sex is not weird at all, but many people think it is. Some people still freak out at mixing men and women as roommates or that a mixed couple could do things as friends.
As a general rule, people (as a group) are always going to assume that everyone is sleeping with everyone, or at least trying to do so, and that men are always trying to expand their personal subset of everyone. You are rarely going to be able to convince people that they are wrong about this, and I’ve found it rarely worth the effort to try.
–
A ‘Lesbian Buddy’ sounds like some kind of gadget, not unlike a Pocket Fisherman. Maybe a sort of multitool that combines basic car maintenance tools, a tuner for an acoustic guitar, a collapsible strap-on, and an iPhone-like app that stores recipes and rates even the most terrible poetry as good?