I really don't know what to expect. It's interesting that the book suggests creating a "crisis" to pull the person back to you. It was this crisis that lead them to each other. I can only hope this will start things anew for me.. with or without her.
You do know what to expect...you keep living your life with or without her. You will continue being a responsible adult and an incredible father with or without her. You will continue trying to do the right thing (and agonizing over it) with or without her. In other words, you will continue being a real man with or without her.
She has to learn some tough lessons that only life can teach. I get the feeling that she has gotten by on the "cute" factor, depending on the men in her life (dad, Jarhead, OM) to bail her out when she gets into a jam. The problem is that at some point the man in her life will demand some behavior changes so that he doesn't have to keep cleaning up her messes--and she resists the demand.
I don't think that she will learn anything until she has to clean up some of these messes on her own. I am concerned that things will get much worse for her before they get better, and about the effects on your Ds. It already sounds like she is headed downward--plagiarizing papers (grounds for expulsion, BTW), financial irresponsibility, etc. Be prepared to step in if you need to.
Keep at it Jar, you're staying sane in an insane situation.