hmmm! you could try it out! if you like it, then go ahead and do it!! dont think about what others think- do what you like to do!
in terms of getting a gf, you'll only find out once you've put yourself out there and done it, so give it a go!
i know a few girls who like guys with longer hair- so there's definately girls out there who are into it!
... and the ones that won't