Romance in games is usually to some degree a wish fulfillment fantasy. Giving the players what they want gives the player what they want, which is the whole point of the game. But on the other hand I understand why people want a character who is "authentically", canonically of a fixed sexuality. You want to feel like the character was written for you, instead of just written for a generic protagonist who won't understand your unique culture and circumstances.
Romance in games is usually to some degree a wish fulfillment fantasy. Giving the players what they want gives the player what they want, which is the whole point of the game. But on the other hand I understand why people want a character who is "authentically", canonically of a fixed sexuality. You want to feel like the character was written for you, instead of just written for a generic protagonist who won't understand your unique culture and circumstances.