It twists your faithfulfuness into something you gloat over. It crucifies your gentleness for now nothing gentle can survive in your heart. In sum, it eradicates love from your spirit and stamps out the fruit of the Spirit of God in your heart. Yet often those they blame are unaware of doing any injury. This lack of awareness is perceived as an intentional neglect and leads to resentment.
Resentment is, for all practical purposes, emotional masochism.
Resentment is emotional masochism. Storing up grievances only brings us shame. In remembering our grievances, we think we're gaining a bit of justice by remembering someone's injustice toward us. But it works exactly opposite in reality. Resentment is a shameful way of dealing with the past or present.