Reconciliation After A Fight: How Do You Say "I'm Sorry"?

Even the most loving couple disagrees sometimes. Words leave behind hurt feelings that can linger days after an argument is over. Something has to be said to heal the damage that has been done, otherwise, the wound is like a festering sore. The infection spreads until the wound is much deeper and more painful than the original cut. Have you learned how to reconcile after a fight? Have you learned how to apologize when you have hurt your loved one? What words do you say? Do you need to say more than I'm sorry?