Major friendship troubles? Need advice.?

I rekindled a friendship with a guy that last yr I stopped being friends with because I felt he made no effort. I became friends with him again a few months ago. He joined my friendship group where I thought I had some rly close awesome friends. I had a fight with my closest friend. Honestly it was a rly small issue until the friend I rekindled my friendship with starting bitching about me to her... He is very manipulative. Things haven't been the same since the fight with me and my best friend. My best friend, and the friend I rekindled my friendship with started getting rly close. Then out of the blue, the friend I rekindled my friendship with decided to get furious with me about God knows.. I felt exhausted by everything and deactivated my fb. I know he has been bad mouthing me to my group of friends and I think they hav all taken his side. They haven't contacted me. The friend I rekindled my friendship with messaged me nasty stuff and said he didn't want to talk to me again. I'm fine with this, but I don't want to lose my other friends. How do I get my best friend back? Should I break the silence and message her? Or give it time?