Honestly, Ashania Trevelyan would be absolutely terrifying to flirt with. Calm, cool, collected, with that glint of subtle superiority only born when one is raised to by a Lady of Vasenarg.
But all that collapses when a pretty lady flirts with her. At least with men, she understands her sexuality well enough to be able to match their wit (or at times, their lack thereof.) But poor girl never has thought about being attracted to women that goes into panic mood when flirted by them, lol. I think it's a fun dynamic. She can tease Cullen, but pretty girls can get revenge for him, lmao.