Just to lend credence to what I'm gonna say: In my family, two daughters have done almost exactly what Faith has done, minus the e-drama and sex tape.
I want you to remember you reservations about Mr. Vickers that you have right now. Because in the following months, after seeing what she does to Ralph, and as more and more lies and treachery are revealed, you're gonna struggle to remember those reservations, let alone care to.
I don't say this to be dramatic, but Ralph is sleeping with a monster, and it's getting more and more bored of the status quo with each passing day. Forget trying to maintain pride or dignity in the face of the e-drama, if Ralph had any sense of self preservation, he'd kick her to curb immediately.
To Mr. Vickers: Faith is gone. Not entirely, because she'll continue to crop up throughout the remainder of your life. She'll be living this shit show on repeat for the rest of her life. You'll start to know what she's going to say before you answer your phone or open her email.
"Oh, another suicide bait, I bet."
"Who's the father?"
"Are you going to keep it?"
"How much is bail?"
"Did you call your sponsor?"
It wasn't entirely clear from your synopsis whether you've reconciled with the fact that your daughter is never going to love you again. In the rare times that it looks like she's coming back to you, remember what happened this month. It will save you a lot of grief.
You said she still needs help, whether she knows it or not. Quit pretending you are on some crusade to help your daughter. This doesn't help her in any way shape or form, it's simply you on a (justified) quest for vengeance.