Donna, first off, I'd like to say no you're not a terrible person. I can see why you're upset and why you said those things. I would take it the same way I think. It most certainly doesn't make you a terrible person. I also feel though, that she said those things out of anger and grief. As much as we all say that's wrong to do, we all say things that we don't mean when we are mad our upset.

I think you should not only send a card, but also maybe make a phone call, explaining yourself. I'm sorry that this happened to you though, but I also feel it's a shame to have a friendship end so pointlessly.