If someone hurts you, betrays you or breaks your heart, forgive them. for they have helped you learn about trust and the importance of being cautious when you open up your heart.
You can always tell how much you love someone by how much they can hurt you.
Never play with the feelings of others ; because you may win the game, but the risk is that you will surely lose the person for a lifetime.
If friendship is your weakest point, then you are the strongest person in the world.