An apology is mainly for yourself…
All of us screw up; some days more badly than others. So we apologize and ask for forgiveness. But who is the apology really for? It isn’t so much for the person you hurt as much as it is for yourself. You are only acknowledging the screw up to the recipient. You want them to realize that you know you were a jerk and agree with them.
When you apologize, whether it is accepted or not, you have released the burden from your heart.
So really… isn’t an apology just a selfish act? (on top of being a jerk in the first place?!)