You think the consulate people are stupid, right?
Her ship has sailed on obtaining a tourist visa I believe for now. Can she show strong ties? If she keeps buying plane tickets I am sure she is trying. Not mentioning you at this point is even going to put her into an even bigger hole especially when they ask her what is she planning to do/who is she visiting and she is going to lie about it....
You can ask her to forward you the embassy appt confirmation page she has. (There must be an email/confirmation page you have to take with you to the interview)
I am really trying to see what is the scam here beside you sending money and she not buying the plane tickets/paying for the interview, but looks like she did have tickets/went to interview.