Hi Purple,
It comes from the book "Emotional Blackmail: When the People in Your Life Use Fear, Obligation, and Guilt to Manipulate You" by Susan Forward.
Here is an Amazon link:
http://www.amazon.com/Emotional-Blac.../dp/0060928972
I couldn't afford to buy it (will look into whether my library carries it) but I found this website that has a good portion of the book as a sample you can read:
http://www.harpercollins.com/web-sampler/9780060928971