Apology is a lovely perfume; it can transform the clumsiest moment into a gracious gift.
How does one know if she has forgiven? You tend to feel sorrow over the circumstance instead of rage, you tend to feel sorry for the person rather than angry with him. You tend to have nothing left to say about it all.
Apology doesn’t mean that you were wrong, or the other person was right. It means that your relationship is valuable than your ego.