Well, I think she might have a competitive spirit and needs to be the centre of attention, or have the nicest things just to show that she is worth something. U know us gals.. we naturally b***h when we see a gorgeous woman, or someone with a gorgeous bag which we can't have... it's simply envy. B***hing makes us feel better abt ourselves.
Of course, when u pulled out ur LV, it was like a slap in the face to her..esp when u made a fuss with her over her new bag at the beginning. I guess she took it the wrong way and got the impression, like "yes, ur bag is nice, but my new LV bag is better". So that's how her silly comment came about.
It was her way of "attacking" you cos maybe, she somehow felt like she lost the "bag contest"? Or maybe she thinks that it was a mockery cos it obvious that you had the better bag, but why did you fuss over her bag in the 1st place?
Just throwing ard some thots here on what may have been going on in her mind...
Of course if you feel uncomfortable, you might what to re-evaluate your friendship with her...