This is an aside, but when I first moved to this area, I was up north with old time new englander's and the first time someone said to me "Boy, you're ugly today" I caved inside---it took a couple of times of "He's ugly today" etc to realize they meant irritable/moody...
As far as appearances, I am afraid in this society women are trained to have exquisite sensitivity to remarks on appearance, whether we "buy" it or not---it begins so young...
you were also feeling vulnerable anyway (& maybe a bit ticked at yourself for getting caught up into the drama...) ----put her and her remark in a 'box' and burn it, toss it off a bridge, kick it down the road... or let time wash it away.