I don't want to go into very much detail about what happened out of respect for those besides me involved. But let's just say that it's been a really horrible day and it's basically all my fault.
I did something which caused another person I care about a lot of pain. It wasn't my intent, but that doesn't change the fact that they're hurt now. As a result, they're very, very angry with me right now and I am completely at a loss as to how to ever make it up to them. Or how to win their trust back, if ever.
And no, I won't say what happened precisely. I can't. But heaven help me if I don't feel absolutely horrible right now.
EDIT: The first sentence was nigh incomprehensible I realized upon a second glance. Sorry about that. Fixed now.