Dear Gluezilla
I have been trying to be vague so as not to hurt your feelings, but you really are not getting this so I thought I will try a longer explanation to save you any further embarrassment.
Yes we did speak about it but I am afraid that explaining why you are being rude does not mean that what you did becomes un-rude.
It is not rude to decide not to invite people to your wedding.
It IS rude, however, to send out save-the-date cards to people whom you even suspect you may not be able to invite. Save-the-date cards are for essential guests - that's the point of them, to make sure that people you really, really want to attend will be able to be free by giving them more warning of the date than the other, more standard, guests. Sending them out willy nilly, making people think they are essential to your day, then not inviting them, is very poor form.
Having spectacularly missed the point of your own gaffe, you only saw fit to apologise for the lack of invitation. As I said, everyone understands that not everyone can be invited; the staggering faux pas here was the sending of the save-the-date cards in the first place, not who was or who wasn't invited. A heartfelt apology for totally missing the point of save-the-date cards and wasting your friends' time keeping a day free for no purpose would have been appropriate at this point, but you did not seem to think you had done anything wrong.
You then compounded this by asking me to decorate your hall as a favour, because your other local friends couldn't because they were coming to your wedding. Oh, and you wanted it to be a surprise for them. Did that not strike you as a rude thing you were doing?
When I declined, saying that I was surprised you had asked me, you inquired if I was serious and asked again. And THIS was the point at which your second heartfelt apology should have been offered!
When I refused again, you still didn't get it. You genuinely don't seem to see how incredibly rude and self-centred you are being. you have asked me a THIRD time.
So for a THIRD time - NO. Do not ask me again.
I have given up hoping for an apology from you for your breathtaking behaviour. But I hope you are not expecting a present from me because if I get you one it will be one on Wedding Etiquette.