1200$ Bridesmaid Dress

I have a best friend who is getting married this year. I want to say that I love her dearly and we have been friends since we were very young. This is her first time getting married and I am a bridesmaid in her wedding. We have just recently gone on a bridesmaid trip, which was a blast. We had also spent a lot of money planning for the trip and doing a lot of events during that time. There are six of us and I have heard others complaining about how much money they have spent on the trip. Granted, everyone participated and there were no issues. She is customizing her bridesmaids dresses, and we had even gone in for fitting to be customized to our body size. It was never mentioned that we would be paying any portion for the bridesmaids dresses nor were we asked whether we wanted to have them customized. I’m sure we would have no problem getting regular bridesmaids dresses as we are all different sizes and would like to be comfortable in our own skin. This whole time I thought she would be paying for the dress and the customizations. Now she sent a text saying that the dress fabric was ready to be done and that there would have to be a 60% down payment within a week. She stated that the dress would be $1200 and we would have to be making two separate payments. I think this is absurd to even ask a guest at your wedding and Bridesmaids to even pay for a dress of this amount no matter how much money any of us make. We have already paid multiple things during the bachelorette trip, but no one is saying anything in the group chat. I plan to send a text to her on the side and say that she should count me out for this wedding at this point if this is what she wants for her bridesmaids. One person in the group chat to clarify how much the amount of the dress was, but another just said OK. I know I can’t be the only one thinking this, but I don’t want to text the other girls on the side because I don’t know them personally. Just asking for some personal input here.