I have mix feelings with this person too. In the end, she apologized to everybody by herself, but still something doesn't sit right. If I didn't see the crying, the guilt, and willing to own up for her mistakes then she could have been an easy villian or a person not liked. She should have confessed right away, before sabotaging the other girls. Luckily, it seems like all the other girls forgave her (with the exception of Tsukasa maybe). This episode showed a lot of personality with the other girls