Desperately need your advise? help?

My friend had asked me to be her bridesmaid and I agreed, but because I couldn't make one of her fundraising events she decided to ignore my calls and messages. I couldn't make her fundraising because I had no way of travelling with my baby, so sent her a check to compensate. Over a month later and a week before her wedding she calls me and I also decide to ignore her calls..Her wedding is this saturday. Don't tell me about bridezilla crap, I don't think you can use that as an excuse not to call your bridesmaid to inform them of what's going on and not even thank me for the check I sent her. It's not like I even had the money, but I thought I would be a good friend and make a contribution. I refuse to go to the wedding and will sell my dress which I had to purchase myself. Had she called me at atleast 3 weeks before I would have forgiven her, but a week?? I didn't even have my shoes..She must think I have nothing better to do with my time. What do you guys think?