“When people withdraw love from us, we might development resentment. After all, we do not deserve unfair treatment and we do require love, not from all but at least from some. Resentment occurs when anger not only comes to visit, but sits down in our hearts, takes off its stinky shoes, and makes itself too much at-home in our hearts. After awhile, we do not know how to ask it to leave. While some anger might be good, persistent and intensive anger that is resentment is not healthy. It can distort in the short-run how we think (as we dwell on the negative), what we think (as we have specific condemning thoughts), and how we act (reducing our will to act in a morally good way).”
Excerpt (Chapter 1) from the book, The Forgiving Life: A Pathway to Overcoming Resentment and Creating a Legacy of Love, by Dr. Robert Enright, Ph.D.