Today's topic is : What is resentment?

Are resentments justified? Is it right to be upset when it's contrary to my beliefs?

Resentment is often defined as anger and an annoying experience as a result of unfair treatment, and it's a relatively common emotion. In simple words it is a feeling of anger because one has been forced to accept something that she/he does not like. A nagging feeling that you've been treated unfairly in some way by another person.