..........Now, I'm stuck doing this project that I don't want to do. It's a small project--only 8 x 10, but I'm still irritated at her presumptuousness. So, I'm curious. What would you have done in this situation--specifically, with the prepurchased kit. I want to be ready if it happens again.[/quote]
I'd have to say no to her. If for no other reason than you don't like the kits.
Invite her over when you are doing what you want to do and show her how to quilt herself.