of course not!! i'm the same as u! i'm having a break with my Swiss boyfriend now but i still like him!
i don't know why i just find white guys much more attractive. personally my favourite is spanish! actually it doesn't really matter as long as he's r white.... sorry if it sounds like racism :P but, yeah. just want u to know that there's nothing wrong with u and good luck with searching for a american boyfriend! u got my support and i'll work hard too!^^ hahaha