I am so impressed with your story - it's truly motivating
I don't want to say what you crush did was right and I completely understand how rude and insulting she behaved with you - but people cross our paths for a reason and act the way to do to trigger something in us - in this case you change from all the issues you were going through and she was like your final straw (in some way you should secretly thank her - don't hate me for saying that - but I know she gave you that push) Good for you for turning negatives into positives and DOING something about it