First thing, thanks for playing my game!
I figured if there are monsters and magic, why not have some other differences? Anyways, there's no one who would be brave enough to say "no" to the person who defeated the dreaded Demon King. :P
Anyway, it means that Selena is gay (or bisexual), so you probably can add the LGBT tag.
Thanks for the suggestion, but I don't think I'll add the LGBT tag. While Selena is gay, it's such a small part of the game that it's really not worth it since I'm sure people looking through that tag are hoping for more than one sentence.