It seems to me that you will loose nothing if you bring it up the the hostess/organizer. It sounds like she is getting fed up with the complaining since she is usually so quiet at the meetings. If I am wrong, you will loose nothing since you are ready to quit anyway. Then you can begin another group and eliminate the complainers/nasty ladies. There was no excuse for that person to jump all over you that way. Good luck, and speak up for yourself. It's not worth the agrivation just to improve your applique.
Sue