Friends dont believe me

Ive shared my story on here before. My best friend who promised to keep me safe sexually assaulted me while I was drunk and asleep about 2 years ago. Once I began to recover after the assult itself, I began to focus on other issues surrounding it. This person had been a huge part of my friend group. He was friends with everyone I knew. I had told my closest friends what had happened. Some comforted me while others called me a "lying bitch". At first I was glad at the comfort being given because at least they believed me, but then I began to wonder, if they really believed me why are they still friends with him? They say they love me and care about me then why do they listen to his rape jokes? Why do they listen to him with admiration on their faces when he talks about how hes "anti-rape"? Why do they validate what he did. If they dont believe me then fine, they can stay the hell away from me instead of pretending to care but if they believe me then thats much worse. That means they're ok with what he did. At this point im simply friends with them because they're all I have. I know they dont care about me because if someone ever touched anyone I cared about the way he touched me, they'd be dead. But it's better than being alone. I dont like letting new people into my life because i find it difficult to trust anyone so how am i supposed to make new friends. Any friends I meet are through my current friends. There's no escaping it because I live with one of them. I dont know what to do and I feel like im never going to escape what happened