Most Helpful Girl
Unfortunately i'm in the same boat as you're in about why some girls are like that, maybe it's simply that there just nasty people. Sometimes they want some better looking, more money, smarter, but there's someone for everyone, and maybe that better guy some girl is looking for will be you. I can't speak for other girls but I know what i look for in a guy is kindness, a sense of humor, ambition (but not arrogance), intelligence, and most importantly someone who accepts me for me. Of course looks play into it, but it's not the most important thing. You just need to find someone who appreciates what you have to offer, and breakups are painful but think about it that she obviously didn't appreciate you, and now someone else can.