I'm at the end of the Lizard's treasure quest and I want to get my first heart with both Ortha and Roukhs, but the question about the player's feelings for them with Ortha never pops up. Is that normal?
You can have both Othra and Roukhs heart even you are Homo MC. You can gain their hearts during the feast which held after you finish the event, there a conversation with Othra. She will ask you "What are you feelings for Roushk?." If you choose "Say you support both of them" and "Yes, both" you will get her heart.