Too bad she's being such a witch! The other posters are right... stick to your goal and forget her!
I've been natural for about 12 years but always had a short barber cut. I decided to let it grow out (it's been 6 months now). I've gotten some interesting looks, especially from one of "us" at work. I WISH someone would make a nasty comment to my face, especially that one with her fake ponytail and shlumpy clothes!
Keep the faith and don't let anyone slow your roll! Come back and let us know how things are going.