" The truth is, the experience of forgiveness is a momentary release. We don’t and can’t forgive forever. Instead, we forgive only for the present moment. This is both good news and bad. The good part is that you can stop judging yourself for your inability to completely and absolutely let go of resentments once and for all. We forgive in one moment and get resentful again in the next. It is not a failure to forgive; it is just a failure to understand impermanence. "

― Noah Levine , Refuge Recovery: A Buddhist Path to Recovering from Addiction