Angry, upset, disappointed. Some of the worst feelings, all at once.
I'm an optimist. I haven't had the perfect life, trust me, but somehow I've managed to make the best out of the situations I have found myself in. Similarly, I also tend to find the good in people. I manage to trust most people, even the ones that don't deserve it. In the end, trust yourself, and only yourself. Lesson learned. Unfortunately, most people are merely looking out for themselves. Everyone has their own motives. You are responsible for your actions and decisions; you're the one that will have to live with the consequences. No one else. It's really easy to blame everyone except yourself and find excuses in an attempt to justify yourself. It's even easier to completely avoid the situation as a whole, but it's when you are able to take responsibility for what happened that you can truly be respected.
Also, it's important to reconsider the positions of those select few who are placed on pedestals. Those people that can never do wrong. The ones that are not capable of causing harm. The ones that would never do anything to hurt you. Don't forget, they are human, after all. Even they are capable of making mistakes, all of which are not worthy of forgiveness.
In the end, it's not about what you do. What's more important is how you handle yourself after the fact. Believe it or not, that makes all the difference.
"May the bridges I burn light the way."