Is true friendship between man and woman possible?

well personally because I'm a geek(otaku and nerd) who LOVE to read and to have fun I don't have time for a girlfriend (too bothersome) so even if a girl ask me out I refuse (I'm not gay mind you) so well sometime its awkward when people think I'm in love or go out with some people but in the end I'm friend with girl ( as long as you don't have a d in place of your brain its possible)