I do understand Maria feeling bad, but at the same time, I don't think she should blame herself for how Anna feels. I'm sorry that Anna lost her voice, but she has some issues. In my opinion, she has treated Maria horribly.
At least Maria has good friends now, friends that are very supportive.
And I'm happy the teacher didn't make much of an appearance. He gets on my nerves. But, now there is a music teacher and I don't know what to think of him. Having a hard time trusting him.
It is nice to know more about Maria's past. But did Maria's mother really do that because of her? I am definitely curious about that.