I love this character and have allowed the qualities the Guru's gave her to play out her story. Her gender fluidity is one of the best introduced in the game. I have used her inability to publicly show affection to play her like a Sheldon Cooper (Big Bang Theory) type with no touching or showing displays of affection. I have her here with her husband Artharv Ghandi who accepts the dynamics of their relationship.
I'll give some advice to anyone who thinks that Darling is a hard sim to play in a relationship. Darling when she is alone with Artharv in their room or home kisses her husband, and on autonomous settings she kisses him all the time.
http://imgur.com/OmyVFaX.jpg