Time to get out the soap

In the last few days, Monster Phi has emerged. We had about a week of her being good and I don't know what happened, but she turned on us. And the behavior has progressed. Last night she would not eat dinner. This is not new. We told her she had to eat or go to bed. After letting her play around with her fork I took her to bed. She was pissed and cried and threw things at her door. After she calmed down PR dad went in and asked her if she wanted to finish her dinner. She did, so she came back out and sat in her chair. I was still sitting at the table finishing my delicious rice and beef bowl. She started playing with her fork again and I told her she had to eat or go back to bed. And then she did it, she talked back to me, she sassed me, she totally threw attitude to me. She said "You be quiet". There was no warning, I looked her in her face and said, "you don't talk to your Mom like that". I picked her up and sat her in a chair in the hallway. She sat there for about 5 minutes while I finished dinner and cleaned the kitchen up. After her "time-out" I sent her to bed. She didn't even cry, I think she knew that she messed up pretty bad. Last night I caught a glimpse of what my daughter will be like as a teen. But I am sure "you be quite" will be replaced with "I hate you", "you're mean", "I wish you weren't my mother".