Each person who enters our life has a unique lesson to teach us. And it is only through these lessons that we learn about life, people, relationships and God.
This means that when someone lies to you it teaches you that things are not always as they seem. The truth is often far beneath the surface. Look beyond the masks people wear if you want to know their heart. And remove your own masks to let people know yours.
When someone breaks your heart it teaches you that loving someone does not always mean that person will love you back. But don't turn your back on love because when you find the right person, the joy that one person brings will make up for all the past hurts put together. Times ten. (geeee wonder if that really happen...)
Forgiving those who have hurt us is the most difficult and courageous thing Man can do. When a loved one is unfaithful to you it teaches you that resisting temptation is Man's greatest challenge. Be vigilant in your resistance against all temptation. By doing so you will be rewarded with an enduring sense of satisfaction far greater than the temporary pleasure by which you were tempted. When someone cheats you, it teaches you that greed is the root of all evil.