God, self-centered much?
The poor girl is trapped in a situation it's almost impossible to get out of. An impulsive and (as far as I can tell) hardly rational or calm betrothed to be, and parents forcing her into the match. Maybe if you're not from a family or culture that places an emphasis on continuing traditions you can't understand such a burden.
Nevertheless she gets away, she meets someone she likes enough to endanger her position in her family and all her ties, but it's not that simple, as her (have I mentioned before slightly irrational) fiance in the making is pestering her. She can't break up with him, and has to keep him sweet. Once she finishes uni she will be in a position to make a clean break and let her family relate to her on her own terms, but until then she won't be in a position financially or emotionally to do it.
You want to make her life more complicated?
You're upset because of the way her actions impact on you?
Yeah, dump her, she's obviously 'playing you', and made up a series of fights with someone who kept calling her again and again from Australia. Dump her. She's showing her true colours.