Basic Trope: A character is attracted to someone whose sexual preferences exclude them. * Straight: Alice is taken with Bob, who is already in a relationship with Charlie. * Exaggerated: Alice is taken with Bob. * No potential couples in the show have compatible orientations. * Downplayed: * Justified: Bob had a traumatic experience that explains his lack of attraction to Alice. * Truth in Television. * Inverted: Everyone Is Bi. * If It's You It's Okay. * Subverted: Alice falls for Bob, but once he introduces her to his boyfriend Charlie, Alice and Charlie hook up. * Alice manages to make Bob and Charlie heterosexual with Applied Phlebotinum. * Alice gets a sex change. * Double Subverted: ... But it turns out Charlie was only trying to