With decades of experience, a person begins to decipher the difference between those who show true contrition and those who are merely a prisoner of the moment. When someone says that they are "sorry", it may be that they are truly sorry or they may merely be sorry that they were caught doing something wrong. God knows the difference.
Lord, help me to realize how much it hurts you when I mess up, and when you provide forgiveness it is because you love me but you also expect for me to show contrition.