Ive never had a really hot emo chick actually. But as someone said in that rocker world, HAIR IS VITAL, for both guys and girls. It has to be long, thick and wild.
I have a girlfriend shes asian (half asian). I find alot of asian women like me actually. But I think this is more personality related.
It sounds to me that she was looking for a rebound/casual fling and you screwed that up. I honestly do not think that it had anything to do with your hair. If there is one thing I have learned in my life its that it truly is a mans world. Us guys care so much about a woman appearance and a womans top priority is not a mans looks. If you just take a look around you will see beautiful women with not so attractive men. You will also she how bad some men will treat women by cheating on them and doing other horrible things to them and these women will stay with their men, but then again what do I know.