Love your quilt and the border you chose! I hate when teachers say you can change/use /make it your own and then are unhappy when you do. And on top of that she was rude!
These teachers are in the same class as ones who ask their students to give their opinion or thoughts on something (usually literature) and then mark it wrong when the students' thoughts don't match theirs! (Guess whose great nephew just had this happen to him and whose great aunt went up and had a conference with the teacher. P.S. She changed his grade and gave him full credit!)