The ladies here have already had some stellar points... and speaking from the soon to be brides point of view I totally understand the concept of quality vs. quantity.
I've mentioned it to my friends before that if they're not seeing someone at the time of the wedding, then they shouldn't go out of their way to find a date either. But, we're not a destination wedding and we're paying the bill. If we were getting married down south where it would cost hundreds to thousands of dollars for the guest to come, then I believe that gives them a right to bring someone so that they enjoy themselves even more.
The bride and groom (and/or family) may be the ones paying for when everyone's there... but you're also asking that any guest that comes take time off work and pay to be there. It's gotta be worth it... and sorry to say that being friends (no matter how much they care about you) may not be enough sometimes. You never know, she may end up marrying the man. awk-warrrrd.

But ultimately, you will have a wonderful wedding and although it's disappointing that your friend isn't able to make it, there will be many more events that she will be there for I'm sure. Don't stress.
