nimh wrote:Bisexual = you are attracted by both genders
Straight - you are attracted by the other gender
Gay = you are attracted by your own gender
So.. is being straight a subset of bisexual as well, then?
Think about the word "straight." It refers to not wavering from the obvious path, the straight path. In other words, its meaning is primarily "not gay", "no bisexual," and could further be extended to mean "not into weird sexual fantasies"...which I suspect is how it was originally used, although we don't use it that way anymore. Since your own definition of "gay" is a strict subset of "bisexual" I will assume you do not disagree on that point.
How much evidence do you need, honestly...do you need him to slap you in the face and say "OMG girlfriend, I am SO gay! Pssssh" Honestly, playing a gay role isn't huge evidence, but actively seeking out and begging for gay roles IS.