Now I am posting this from a bridesmaid perspective. Goodness.. I feel like that's all I am ever doing.. I have 2 weddings coming up: A good friend from Elementary school && My cousin (Both great girls AND I love their FI's) Okay so this is about my friends wedding..
I posted way back and said that I may have to delete the post and I did... Well now I'm to the point where maybe she needs to read what I am saying!...and all this advice!
OKAY so.. Last time I asked what to do if she had a whole bunch of 'events' required for us. I have been attending some and I have been "busy" for others. I don't want her to step all over me BUT I still want to be a good friend. I love her so much, but I feel like I will be getting silver specs in my hair within the weeks!
She sent us all a email telling asking us to pick our jewelry.. there was about 7 selections with none running below 40$.. And she sent us options for the shoes that cost around 40$ and that we had to order them from some website? Well that is all fine and dandy with the $200 budget we wanted to keep.. UNTIL she told us the dress was going to be $20 more then we expected and that we need to get our hair done as well.. *jaw drop*... This whole time she keeps telling us how tight of a budget she is on, and I COMPLETELY understand that.
I feel like I am 5 and my brother took my piggy bank and smashed it on the ground.. we have 6 people in the wedding party and 4 of those girls (including myself) are planning our own weddings..
WHAT DO I DO 
I really am shy when it comes to hurting her feelings she has been my best friend and I don't want to burn any bridges. I just worry that tomorrow there might be another cost and another.. all leading up to my FI wearing his boxers at the altar because we cant afford his suit!
UPDATE:
Ladies thanks for the advice.. I called her today to talk and we started off fine. I told her I was worried that I wouldn't be able to afford everything that she is requiring and she laughed.
She told me that "When you said you would be a bridesmaid you knew what you were getting into" I simply explained that I was unaware of the fact that I signed a 500$ contract.
I took this right from a message she sent:
"I haven't even picked your accessories yet. And its bogus that you're giving me a budget. I'm aware that we are all college students and I am making the best decisions I can."
She sent this to another girl who was concerned with the money situation as well.
Ugh what happened to the sweet girl I have known my whole life. What do I do if she kicks one (or more) of us girls out of the wedding?