What do I tell the person I love/friend that I didn’t betray him like the others have?

My friends fell out and betrayed with the one friend I do love and care for (we don’t have a label realy just a great connection) 

I also felt betrayed by them after they dragged me into this mess and I feel realy stuck in the middle, they failed to listen to me as I wanted to give him a chance,as I know he didn’t realy do much wrong and didn’t hear me out and after admitting my feelings for him to them they decided not to include me in the unfair chat they had with him as it went wrong (I knew it would without me) 

But also they never told me how it went so I could assess for my self, as I felt i wouldn’t agree or get the wrong end of the stick, they don’t know him like I do and make a mistake, as a result they decided to tell other people without even talking to me about it, I honestly didn’t want anything to do with this betrayal of my friend, as I don’t believe what’s been said was the truth

As they said that his ex best friend told me I’m to be exiled if I am to defend or talk them.

Just I have no idea what to say to him as I feel I’m betraying them both  if I talk to him, but I do cuz of how serious the accusions they said about him. But I feel my only option is to talk to him about that I didn’t want to go through with it, but at the same time I feel realy sick just seeing all the sh*t thier talking about  him, conjured up by the ‘bestfriend’ who would stop at nothing getting thier way. Even if it’s to silence and threaten me