This is somewhat related to my post from yesterday which you can read here:
https://www.reddit.com/r/AmItheAsshole/comments/b0fbgz/aita_for_not_wanting_my_best_friend_to_talk_to_my/?utm_medium=android_app&amp;utm_source=share

Just to reiterate, me and my ex broke up a bit less than a year ago in a very public and emotionally taxing scenario. We had been on and off for nearly 9 years and it was mostly hell for me. Calling me pathetic, stupid, bitch, cunt, literally anything you can think of. Throwing things at me, choking me, getting belligerently drunk almost every night and starting fights over TV shows and really dumb things. On more than one occasion he left marks on my neck and arms because of grabbing or choking or holding me against the wall. I'm still not really over what happened if I'm going to be honest. 

I've learned through other sources that he's been seeing someone, and I have access to her Facebook account. I have a strong urge to send her a message telling her to be careful and maybe send her some screenshots I still have where he admits to the physical and emotional abuse. I'm torn on the morality of this though. Everyone in this scenario is an adult and can make their own choices, but I honestly just don't want anyone to be treated like I was. 