It is okay to be bi-sexual, in fact it is great that you are admitting it. Your parents will not disown you, and your fear should not stop you from telling them. However, you should tell them in a way that will help them understand. Say that you are sure of it, you have known it for a while, and if they are in denial that is not your problem but theirs. Do not let anybody, even your parents make you be ashamed of your sexuality. It's a beautiful thing to be bi-sexual, gay or lesbian. It does not make you a freak in nature, but a brave person for admitting and owning up to your sexuality. if you like woman as well as men, what will make you happiest is to express your like for both genders! On another note, my advice to you about liking your female best friend is this: if you don't go for it you'll never know. Be sure that before you attempt to try anything on her, she will not feel uncomfortable about it. Maybe ask her if she has ever thought about being with girls, as a girl-to-girl conversation and see what her reaction to just that is. And as for liking your boyfriend who obviously is a male, that is perfectly okay too. If you feel you are loosing interest, do not ever feel obligated to stay with him or anybody, boy or girl. I know it may sound corny, but follow your heart and instincts about this. Good luck!