Help?

Ok I have this crush on one of my Những người bạn who is also a girl. I keep blushing when I am around her and I think about her maybe thêm then I should DX (oh god I sound like a total creep) and I am just so shy and jumpy around her and my other Những người bạn are noticing this (I recently moved to a new school and I have new Những người bạn and my crush is one of them and none of them know im bi sexual) my other Những người bạn kept asking me about my crush and and I think they may know ,how can I tell them im bi hoặc how can I hide it?