Feeling a bit helpless

A couple months back, I was trying hard to understand where my friend (I’ll call her c) was coming from. She was trying to tell me that I had to acknowledge what I did wrong in another friendship. I had been abused by another friend emotionally. I went to C just to talk but she ended up wanting to know what happened with everything. I told her about this situation and she ended up getting really mad at me because I kept telling her that it was the other persons fault for taking advantage of me. She said she despised me for blaming. For ppl “like me” she said. It really hurt. She said she didn’t want anything to do with me and blocked me. I just felt helpless. She was my only and oldest friend.