Have you ever had an abusive partner how did you finnally leave them?

(this question is very sensitive to some so pls be respectful at all times to people who post here) I currently have a friend in real life who is going through abuse from an authority figure and are pretty broken from it is there any advice from people who have been in abusive relationships for people struggleing with one currently specifically on how to leave one

Have you ever had an abusive partner how did you finnally leave them?
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