I just want to thank you all for the great advice. Hearing lots of people telling me how horrible she was is really helping me move on. I can take a little comfort though in knowing that her relationship with her new bf was probably arranged by her parents or friends (all of whom heap huge amounts of pressure on her to marry before she turns 30). She told me she's going to get married on Nov.17 to a guy she just met about 2 months ago.
I can see this very clearly now, she's going to marry this guy, he'll get her pregnant, in a year or 2 she'll realise she doesn't like him, but can't leave him because they have a kid together and no Chinese man is going to take a 32 year old woman with a child who is divorced. Next thing I will get a call or an email begging for me back again because her "marriage" didn't work out, either that or she'll spend her life in a very unhappy relationship.
Either that, or the guy will get her pregnant, realise he doesn't love her at all (like I did), and leave her in that condition, unwanted, unloved and alone. I'm starting to heal, little by little, I think in about 2 or 3 months I will have reached the point where I will never think about her again.