Her attitude is appalling. It's clear that she flat out doesn't want to pay you back and she's just making excuses.

Please do take her to court. If it doesn't work, at least it'll scare the wits out of her and maybe make her think twice before scamming money. I hope for the best for you, though!

And, at the end of all this, I hope you did learn your lesson about who to trust with your money. An expensive lesson, yes, but I'm sure you're probably a lot more responsible with your money now, so at least you've got that.