SEB - look at it on the basis that you've had a close shave with someone of questionable morals seemingly desperate for a meal ticket. I'm a firm believer in what goes around comes around so hopefully it will all end in tears for her. You are a decent person with a lot of guts to come on here explaining all that has gone on.
Chin up, continue the project, put the bad apple down to experience and I'm sure you will find your Filipina Dreamgirl. I wish you all the very best of luck.