Why Is It So Hard to Forgive Someone?

Have you ever remembered something someone said or did years ago and felt the same anger all over again? Perhaps a friend betrayed your trust, a family member treated you unfairly, or a colleague took credit for your work. The incident may be long over, but the feelings return whenever you think about it.

We often hear that we should forgive and move on. It sounds sensible, especially when we give that advice to someone else. But when we are the ones who have been hurt, forgiveness becomes much more difficult. Even when we want to move on, something keeps pulling us back to what happened.

When One Hurt Begins Affecting Everything

I know someone whose relationship with her mother-in-law has been strained for years. It began with something hurtful her mother-in-law said long ago. The incident was never really resolved, and the resentment has remained.

Over time, their relationship has become increasingly difficult. Now, even small things her mother-in-law says or does seem to irritate her. An ordinary interaction can spoil her mood for hours. Watching this, I wonder how much of her present distress comes from the original incident and how much from the resentment that has built up since then.

Of course, I do not know everything that has happened between them. But the situation makes me wonder whether an unresolved hurt can change how we see someone. Once we develop a negative view of a person, we may notice everything that irritates us while overlooking their better qualities.

This can happen in many relationships. A spouse may keep bringing up something hurtful said years ago. Siblings may remain distant following a property disagreement. Even at work, we may carry resentment toward a former manager long after changing jobs.

Why Do We Find It So Difficult to Forgive?

One reason is our sense of fairness. When someone hurts us, we want them to recognise what they have done. We expect an apology or some acknowledgement of our feelings. Without that, forgiving them can feel like allowing them to escape responsibility.

Pride can make things harder. We may wonder whether taking the first step makes us look weak or suggests we were wrong. If we forgive someone who has not apologised, will they think their behaviour was acceptable? Will they take advantage of us again?

There is also the fear of being hurt again. When someone breaks our trust, holding on to anger can feel protective. We may believe it will prevent us from making the same mistake. Sometimes, that anger also reminds us that a boundary needs to be established.

Our expectations matter too. We may overlook an unpleasant remark from a stranger, but the same words from someone close to us can hurt deeply. We expected that person to understand us better, making the disappointment greater.

And sometimes, we keep replaying what happened. We remember the conversation, question the other person’s intentions and imagine what we should have said. Each time we revisit the experience, some of the old feelings return.

Are We Carrying Burning Coal?

Carrying resentment can be like carrying a piece of burning coal in our pocket. It keeps hurting us, but we continue holding on because we strongly believe the other person was wrong. Letting go feels like accepting what they did.

And perhaps they were wrong. Perhaps their behaviour was genuinely unfair. But does continuing to carry the same anger make the situation any better? Does it change what happened or make them recognise their mistake?

Resentment may gradually affect more than our relationship with the person who hurt us. We may become upset whenever their name comes up, revisit old conversations or allow an unpleasant memory to spoil an otherwise good day. Sometimes the other person has moved on, while we continue spending our emotional energy thinking about what happened.

Research suggests that forgiveness can help reduce this burden. A 2024 international study found that people who completed a brief forgiveness programme experienced less unforgiveness and modest improvements in anxiety and depression symptoms over two weeks. While forgiveness is not a solution to every emotional difficulty, learning to release resentment may support our wellbeing.

The question is whether holding on to anger is still helping us or has become another source of suffering.

Forgiving Does Not Mean Forgetting

We sometimes assume that forgiving someone means accepting their behaviour, pretending nothing happened or allowing them back into our lives. But forgiveness, trust and rebuilding a relationship are different decisions.

We can forgive a colleague without trusting them again. We can release resentment toward a friend without rebuilding the friendship. We can forgive a family member while maintaining boundaries about how we expect to be treated.

Forgiveness does not mean abandoning fairness or justice. We can still seek repayment of money, challenge unfair treatment or distance ourselves from someone who repeatedly hurts us. Trust may need to be earned again, and sometimes it may never return.

This matters particularly when there has been repeated mistreatment, manipulation or abuse. Protecting ourselves must come first, and nobody should feel pressured to forgive. Sometimes we may move forward by accepting what happened and rebuilding our lives without choosing forgiveness.

What If the Apology Never Comes?

Many of us wait for an apology before considering forgiveness. We imagine the other person recognising their mistake, understanding our pain and accepting responsibility. That acknowledgement may help us feel heard and respected.

But sometimes the apology never comes. The other person may remember things differently or refuse to accept responsibility. If our peace depends entirely on their acknowledgement, we may spend years waiting for something that never happens.

We can still seek accountability where necessary. But we can also begin working through our feelings without waiting for the other person to change. Accepting that we cannot control their response may be an important part of moving forward.

How Can We Begin to Let Go?

Forgiveness is not always a single decision. Some experiences take much longer to work through than others, and understanding that resentment is affecting us does not automatically change how we feel.

We can begin by recognising what we are carrying. Are we angry because someone treated us unfairly, disappointed because they failed our expectations, or hurt because someone we trusted let us down? Understanding our feelings may help us see what needs attention.

We can then ask what we really need. Is there a conversation worth having? Do we need an apology, changed behaviour or a clearer boundary? Or do we simply want the incident to stop occupying so much of our mind?

It may also help to separate what we know from what we have assumed. We may be certain about someone’s actions but less certain about their intentions. Trying to understand their perspective does not mean agreeing with their behaviour.

We do not have to force forgiveness. Progress may begin with thinking about the incident less often or choosing not to let it affect unrelated parts of our lives. If both people are willing, a conversation may help. Otherwise, we can still work toward finding peace on our own terms.

Sometimes, We Need Forgiveness Too

We are not always the person who was hurt. Sometimes we are the ones who hurt someone else, perhaps without realising how deeply our actions affected them.

We may have spoken harshly to our children, treated a colleague unfairly or failed to support a friend. An honest apology and a genuine effort to change can sometimes repair the relationship, although forgiveness remains the other person’s choice.

We may also struggle to forgive ourselves for past mistakes. Taking responsibility, making amends and learning from what happened can help us move forward without repeatedly punishing ourselves.

The other person may genuinely have been wrong. We do not have to change our judgment, forget what happened or rebuild the relationship. But perhaps we can gradually put down some of the weight we have been carrying because of what they did. We cannot change the past, but we may have more freedom in how much of it we carry into our present.

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