She was a total bitch in the first episode. Obnoxious. She's wary of Ranka in episode 5. Jealous. She kisses Alto when Ranka is there, knowing full well. Stealing. I wouldn't be surprised to find she gave a thumbs down to Ranka in the idol contest in ep 4.
Has-been is the only inaccuracy at the moment. But that will come with due time.