My best friend still talks to someone who deeply hurt me

Part 2

So I've been played and it had a huge impact on my mental health. At the same moment, this person get close to my best friend, so I was afraid to talk about it for many reasons: will my best friend think I'm just gossiping because I'm jealous? I can't tell her not to hang out with them it's like controlling her even if they are a toxic person etc. So I suffered and stayed quiet for monthes. When I finally cut the toxic person I explained everything to my best friend, but her reaction was a bit disappointing. Telling me after being abused that "it's my fault for letting them hurt me", "I knew you didn't feel ok because of them", "I will not comfort you" is a bit rude... Maybe it's my fault because I hid it?

I know I'm dumb but nowadays I'm still in touch with my best friend because I love and care a lot about her, even if she didn't show a lot of support. And to be honest I'm dependant, when I was feeling bad, her presence helped me a lot to calm my anxiety.

But now it hurts too much seeing she still remains friend with this person being fully aware of what they've done and how destroyed I am, it triggers me when she uses her expressions, I am imagining being replaced... What she is doing is like invalidating what I went through.

I don't know what to do... I know it's better for me to cut with her but I can't now... I wanna make her realise that I can't heal like this, should I explain my feelings or it is risky?