Help?

Ok I have this crush on one of my 老友记 who is also a girl. I keep blushing when I am around her and I think about her maybe 更多 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 老友记 are noticing this (I recently moved to a new school and I have new 老友记 and my crush is one of them and none of them know im bi sexual) my other 老友记 kept asking me about my crush and and I think they may know ,how can I tell them im bi 或者 how can I hide it?