Lord have mercy.
I remember when I thought that I met "The One".
And "The one" did play me hardcore, Thank God that he made it so that I never slept with him and I moved when things were getting uglier.
I hope that he shows the same mercy on your friend as he did me and removes her before anything scary happens.
As I have noticed in my life and have been told, if she waits and prays God will remove the bad people and replace them with new ones.
Lord have Mercy