Oh my, how times change. 1980's Nintendo wouldn't have allowed anything like this to exist. But believe it or not, the next Fire Emblem game, Fates, will allow the player to choose whether the protagonist hooks up with a same sex partner. And don't worry, "nobody" has to be left out: it allows for both lesbian and gay marriages. Basically, this applies to only two characters (one male and one female), and marrying either one is completely optional, and you have to work toward it happening, i.e. it doesn't just suddenly drop down as option out of the blue at some point.
On the one hand, hooray for openness and choice! On the other hand, I don't really want stuff like this in my entertainment. I'm not anti-gay (far from it), but when did games stop being about playing and having fun in a neutral in-game environment regardless of who you are? I mean, there are a lot of games from over the decades where you rescue someone just because that person is in peril, not because there is any kind of romance involved between the people. I guess perhaps fogies like me should go back to Pong Sports...
Either way, though, if this game is as good as Fire Emblem: Awakening, then I'll eventually acquire it too.