hurtful and hateful

Can any one tell me the difference between hurtful and hateful? There is a fine line between these two terms, but nevertheless, they still have very different meaning.

Hurtful is when some one is hurt either physically or emotionally. When you do something or say something that may make another person uncomfortable, angry, despair and painful, you are being hurtful.

Hateful, on the other end, is a lot more extreme. Unlike hurtful, hateful can be demonstrated via anger or actions that can lead to potential damage that one can never be able to forgive. One also cannot be hateful before first experiencing hurtful. After a series of hurtful events, may I say that, it can lead to hatred? Hence, becoming hateful?

My understanding on this two term is very different, but then again, I might be wrong. Let me know what do you think.

But one thing for sure is that being hurtful or hateful begins with hurt. No one will ever choose to be hurtful or hateful without a reason. After all, God made us to love one another. I believe that before all this negative events arises, there is love. What causes love to be overwhelmed by such darkness? Was it that series of hurtful events? And where does the love goes once the person becomes such hurtful or hateful people?