She had a blatant attraction to a female in her 'school' if you bother to look hard enough in ME3.
Hmm... I don't remember that, and I do have a fine tuned sense of subtext. Guess I'm going to have to load up ME3 again and see what I missed.
The point remains, though. She is not a bisexual LI. On your list, she is the only one who could not be romanced by the same gender PC in the game in which she appears.