Do'nt worry about it, you're not ugly, it's normal; to go long periods with out a girlfriend, i have'nt had one in 4 years.
You'll get a girlfriend when you're not looking, i know in my situation there's a couple of girls who like me, but i'm taking it slow, i do'nt think i want to be in a relationship right now, i could be wrong tho.
As for those who made fun of your nose and such, maybe they were ugly and made themselves feel better by putting you down, happens all the time.
Do'nt worry, you'll get a gf sooner or latter, but i would'nt look for a girl at the club, i never thought that was a place to look for a relationship, take walks, go to the store, take a strole through the park, you'll eventually find a girlfriend worth while.