The context of the following conversation is Sydney had made a big mess and did not want to clean it up, so Kendall told Sydney´s mom about it.:
Sydney says I had dumped my pasta all over the table but I was too lazy to clean it up.  Kendall told my mom about it..
The friend responds Did you clean it up eventually?.
Sydney responds My mom told me I had to otherwise she won't give me money for this weekend..
The friend responds That's good that you cleaned up your own mess..
Sydney responds I know I should.  I was just being a brat.  I should always clean up after myself..
The friend responds Your mom taught you well..