Why did my daughter say this? What did she mean?

Yesterday afternoon my perfect princess and I went Christmas shopping ( after school) at the mall. There, we ran into my sister and the little b**ch( my younger daughter that my sister adopted). We saw them before they saw us and I got scared. I asked my angel how to handle the situation. She gave me orders and we went to say hello. I cursed my younger daughter out, as per my perfect princess' rules. My sister was horrified and the stupid little b**ch cried! My angel and I were going hysterical laughing. Once home, my angel told me how proud she was of me, since I listened so well. She then said, however, that I must learn how to handle these types of situations when she is not around or gone. Why would she say that? I can't imagine my life without my perfect princess and her strict, loving guidance for my husband and I. I'm so upset that she said that I am still crying.