Help pls

I have this friend who I’ve told things I’ve never told anyone else and it’s really personal. Today I found out that that she told other people about this and she said that this was fake and I’m js attention seeking (I have proof I’m not I promise). I told her not to tell anyone. I didn’t want to be friends with someone like that so I blocked her. All her friends were dming me and telling me to unblock. Her really close friend said things that reopened a wound and it hurt. Do I unblock her? Am I in the wrong?