ARGH. Saw her in town with a few friends, didn't speak to her - saw her about 15/20 mins later in her sister's car - she waved at me and a group of people I was hanging around with - got home, went on Facebook - and I got a message from her sister on chat (blatantly Ellen, though) saying - "I saw you in town, and you obviously saw me and you didn't wave back. That's slightly rude of you" i don't get it >_<