Obsidian is the codename of Todd Rice, who is the biological son of Alan Scott and Rose Canton, respectively the Golden Age superhero Green Lantern and villain Thorn.
His sister is Jade. She is essentially one big emerald power source. She is Obsidian’s twin sister.
So to make this character a homosexual, they have to kill off two other characters.
They’re just adjusting by a generation.
Obsidian was gay in his previous life.