Hidding isn't a result of you being ashamed of who you are. Sometimes to keep things under control you have to do things such as keep secrets or whatnot. It's hard "being in the closet" (please, no one kill me for that comment sweatdrop ) and it's something we all have to go thru as bi or homosexual ppl.

Just listen to you're heart. The time will come when you know it's time to tell them. Untill then.. just try to deal with their s**t. (hugs)