I'm sure you are devastated. After all of the hours
that you spent to make a beautiful quilt...... honestly, I would fly back to the quilter and tell her that I gave the quilt to her in good faith and that I
would like it re-done. It really doesn't matter that she is very nice, $100.00 is a lot of money to throw in the garbage. According to the
quilters that have already answered you here on the forum you were
not to blame - and she did blame you - a nice person doesn't do that.
If she has nerve enough to say that it's your fault - you certainly don't
need nerve to ask her to do it over - at no further charge to you. Or, if she doesn't want to do it over you should get your money back.
I think you will kick yourself if you just let this go.