what has melindas parents noticed ?

Melinda's parents have noticed that she won't talk, and that her grades are falling.

Mother: "That's the point, she won't say anything! I can't get a word out of her. She's mute."
Guidance Counselor: "I think we need to explore the family dynamics at play here."
Mother: "She's jerking us around to get attention."
Me: [inside my head] Would you listen? Would you believe me? Fat chance.
Dad: "Well, something is wrong. What have you done to her? I had a sweet, loving little girl last year, but as soon as she comes up here, she clams up, skips school, and flushes her grades down the toilet. I golf with the school board president, you know."