I Need Your Help Again Please?

Well yesterday,
I managed to tell three of my friends that i'm Bi,
two of them are fine with it, but one of my best friends, was a lil' shocked..

But she was okay with me that day, until later, then she suddenly stopped talking to me, and hanging with me..
and one of my other friends I told, i'm regretting, cos he went and told the girls that my friend is hanging out with at the moment..
he says he just said it when they were talking about me, behind my back,

so now, I dunno, the main girl shes hanging with now, is called Steph, and everytime she see's me now is giving me a really dirty look, as is the girl called Kim,
(they've both been absolute, stuck up ''plastic wannabe's'' since I met them.., and they really piss me off regularly, but this is really getting to me)
luckily, a friend of all of us called Meg, is still hanging out with me, and shes awesome, but she doesnt know.. about much of it,
So these are the problems,
A) Do you think i should have told them? ( I thought I could trust them)
B) What should I do now?

Thanks,
Xo.
(The Pics Of Me, and My Friend A While Back)