It takes maturity to truly forgive and not just "pretend" to forgive. Only those who have never "messed up" should stay immature and refuse to let the past go and repair the relationship. Get over it and quit being a jerk!
forgiveness is important, I am glad I have had many role models teach me the true meaning of forgiveness. Since then much weight has been lifted off my shoulders. But certain ppl take longer to notice you've forgiven them or they're just too proud.