Maybe she's bi-polar, too? It's not an excuse for rude behavior ... there's rarely an excuse for that, IMHO ... but who knows what or who happened along before she saw you. S**t flows downhill and I'm sorry you got the brunt of her problem. At least you can congratulate yourself for not jumping on someone else's case and sending the s**t downhill even more!

I agree with everyone else ... stay in neutral where she's concerned and try to forget it.

Hang in there ... and I hope your New Year is healthy and happy!

GoodMama