To ask, or not to ask?

There are many questions I have now that I need answers to. The biggest being should I ask them at all. Such a whirlwind as happened tonight, such a meleé of emotion that I'm surprised I can still stand. But then, I'm not so affected as that.
I heard the words with my own ears and still I'm failing to understand. Maybe I should stop trying to understand. I feel very angry, and vengeful; I want to enact revenge of some sort yet I can't. This is not clear cut, this is muggy and dirty and so mixed up that I feel unable to act either way.
I am so hurt by this. For the first time I am not the one to blame, I wasn't seeing things that weren't there, or only seeing the things I wanted to see - I saw what was there; what was real. Yet I am the one who has to pay. I'm the one who has to feel foolish, and humiliated and stupid. I do know that this is not the end of my world. I do know that there are a million people out there worse off than I am, a million times worse even. I do know that I will get past this, I'm made too strong to be beaten down for too long and there is some relief in finally knowing where I stand.
But that doesn't stop me feeling hurt and angry. I am blameless in this, I did nothing but be charmed and swept away as anyone would have. But I feel mortified.
I feel like saying nasty things, I feel blatantly showing the whole world what a horrible was done to me. But we were friends ere anything else and that stops me. Still, after all that has happened I could not do that.
He fucked up. He royally fucked up and I know he knows that but I want him to know it more. How could he ever expect things to go back the way they were? The thoughts of even seeing him right now turn my stomach. I feel betrayed.
Because of his actions, not only have I lost someone I thought I could be with, but I've lost a friend as well. I don't understand why.
This is a new hurt to me. And the truth of the matter? He didn't deserve to break my heart, he's not worthy of it. Nor does he deserve my tears, fall though they might. I'm worth more than that, I deserve more than that.
I hope he realises what he's lost. I don't think I will see him 'on the other side'. I'm not sure I'll ever allow him to have me again, as a friend or even less.
So do I ask him why?

I don't know.