"In fact, for several years now, there has been one recurring character who, in my mind, is gay but there has never been an opportunity to confirm the fact. While I feared that suggesting it in a throw-away (“I’m heading back to Earth to spend time with my boyfriend. See ya!”) would seem like a truly forced WTF moment for fans, alternately, making a big deal of it felt wrong as well. So, unless the right circumstances present themselves for this character, the fans can simply go ahead assuming he is heterosexual until such a time that, in a Rowlingesque postscript, I can add: “And, oh yeah, by the way - he was gay.”