Shower drama....what would you do?

Ok, first let me start off by saying that I love all my bridesmaids and my MOH. All of them mean the world to me. I guess there has been a little drama about planning the shower, that they were trying to keep from me, but I found out without meaning to. One of my BM's lives in Arizona, she will not be coming to the shower. She is going to have to pay for plane tickets for her, her husband, and her two kids to come for the wedding, and she is paying for her hair and stuff to be done too. When I was in her wedding, she told me not to worry about the shower because I was not going to be able to be there.....anyways....my MOH sent her an e-mail breaking down the amounts that each person has to give towards the shower, after all of the other bridesmaids said that they don't think she should have to put any money in, because she will not be here, and she has to get her plane ticks....but the e-mail was already sent..so now I don't know what to do, I don't want her to put money in..I don't think it is fair to her, if she is not gonna be here...I am afraid to say something to my MOH because I don't want her feelings to get hurt. I was thinking I should just call my friend in Arizona and tell her to reply to the e-mail that my MOH sent her, and in it say that I told her that I did not want her to put money towards it.....would that be ok? I don't know what to do. I don't want any drama, and I care about all my bridesmaids so much....

Sorry so long...TIA