Lets get this straight she ignored you for absolutely no reason??
No reason at all???
Sounds like you either bragged to your mates about her and they said something back to her or she's just a nut job
This girl I really fancied acted the same. Had flirted with her a few times at parties but never spoke because of her jealous boyfriend, then one day I went into a car dealership where she had just started a new job. She came over to me and told me how she had split up with her BF and we smiled flirted a bit. Went back a few days later to follow up on business and she happened to be outside, we spoke for ages.
Then a few weeks later I met her at another party and she practically ignored me, couldn't understand it. Later I found out she was a nut job and a bloody psycho too, so glad it didnt work out
Many questions answered.... Many answers questioned