Forgiveness doesn't excuse their behavior. Forgiveness prevents their behavior from destroying your heart. Deciding not to forgive hurts not only the other person but you as well. Not learning to forgive hardens the heart and makes shallow the soul.
"The most powerful tool in coaching is the question - the Greek philosopher Socrates is regarded by some to have been the first coach. Among other things, he used deversified questions in his talks with his students. Here is how he did it.