She has a crush on Castor Nova, as do her housemates. Castor does not seem to return her feelings, however she does have an admirer in the form of his frat brother Joshua Ruben, who has a crush on her, although she seems unaware of his feelings and only considers him a friend. She's a quiet bookworm, and likes to keep things calm at the sorority.
Tiffany's biography says she does not like to "make waves" in the sorority, or in other words, cause trouble between the sisters. At the start of the game she is not friends with her roommates.
Like several other Sims from Sim State University, Tiffany starts off with no gender preference. She is 55 hours away from the final exam in her first semester, when the Tri-Var sorority household is first played. Even though Tiffany's Lifetime want is to become Mad Scientist, she has no interest in Sci-Fi.