What a *****!
I hope that Karma gets her back for what she did to you! The verbal contract that you made with her is legally binding and not that I would be one to pursue a dispute over this small dollar amount it was still a bad move on her part. She will no longer have credibility among many on craigslist and sounds like this one guy is having some fun with her. I hope that she ends up selling it for the $175 or even less then that.