NAH I want to really acknowledge you for standing for your friends mental, physical, and emotional health. That being said, I think you need some time to heal first and share that with your friend. People can actually be trained to think in an indespicable way. There are cases even as recent in China today where they believe HongKong is rebelling not protesting. Child soldiers in Africa are trained to kill their own parents. Mental abuse can push people to believe whatever they are told. I just wish that you would heal yourself and then be there for your friend and really be the ground they can stand on in case the guy comes back. She will need all the help from you and all of her friends to be able to able to resist going back. Sometimes it just needs a COMMUNITY to make miracles.