If what you're saying is accurate (I'm not suggesting that you're lying; but if there are no important omitted details that might cause us to draw different conclusions about what you've said so far), then do I hope she has the courage to come forward with the FB transcripts -- especially all the explicit fantasies the hiring manager was stupid enough to post in conjunction with an explicit quid-pro-quo in the same channel. Along with copies of any ridiculous statements she was forced to sign.
These companies just won't stop behaving badly until their behavior gets vividly exposed often enough for them to start thinking twice. In the case of sexual harassment, the more incontrovertibly damning material that comes out (provided it is done with the express consent of the victims), the better.
The "victim"? Please. She weighed things and decided that a fulltime job right out of the gate was more important than a one-nighter and cheating on her ex. Not justifying the manager and everyone involved in the cover-up but this sounds more like a consenting adults agreement than a poor victim exploitation.
Or you can look at it that if she was a guy she would have just been offered the job. In this scenario her manager thought "hmm, she fits in well here and I can also get laid!" In that case, she had to have sex with somebody to get a job that somebody else would have got without question.
These companies just won't stop behaving badly until their behavior gets vividly exposed often enough for them to start thinking twice. In the case of sexual harassment, the more incontrovertibly damning material that comes out (provided it is done with the express consent of the victims), the better.