It is hard, but if you want to continue to grow as a person, eventually, you will have to forgive and move forward.
On New Years Day 2011, I was angry, hurt and confused because shortly before Christmas, I found out the real truth about a situation that was hidden from me; I found out that a "gift" had been purchased for me, motives and actions had been hidden, and whole truths had not been told, in order that I be held in a spot that I did not deserve to be in, done at the hands of somebody who professed to be my "friend". This friend wanted to have control that he did not rightfully deserve.
Today is almost three months later, and I have forgiven and have moved on. Forgiveness does not always mean all that mushy-mushy, kissy kissy stuff though. It does mean that you have resolution and closure, so that you can focus on the good that is out there for you.
So I say that to you to say, this takes time, but whatever you do, find resolution and closure so that you can heal. Talk to somebody that you trust, this helped me a lot. I confronted the person that I had a grievance with as well. This helped me greatly. I also exposed some truths of my own, via the Spoken Word and the Written Word, and this pushed me really well, to get over it!
Whatever you have to do to get yourself some healing for yourself is up to you, as long as it is not destructive to yourself or others. But once you do, you will feel like a Beauty Queen! I now know what has happened, but it does not hurt nearly as bad as it did in January, 2011.
I hope this helps.