Hate and hurt are children of the same father, both are negative vibes and destroys like a deadly virus. One manifest outwardly while the other eats deep into the very existence of a being quietly but sadly. Each sometimes trigger the other and most often manifest as a result of the other.
To hate you must have been hurt, to hurt you must hate alas!
I will rather love, because love covers a multitude of sins, hurt and hate inclusive (1 Peter 4:8; Proverbs 10:12). You must let go of the past, you must forgive and you must forget. I hear you say it is difficult, but I say it is achievable!
I write this to those hating and hurting right now, it’s time to let go and let God!