On the eve of marriage?

I am australian, born here in sydney. I have a nepal girlfriend, living together for 2 years now in sydney. It has been a controlling relationship, i have lost friends, family etc thru this ordeal for her wanting complete control of me. So yeah i could write here the next 1000 lines of what has been happening over the last 2 years, but anyway i stuck with her, couldnt leave her. She came on a tourist visa, went to a refugee protection visa, and now after 5 years herself fighting has lost for the 5th time. Lots of money and heartache. She has 2 sons in nepal she hasnt seen for last 10 years. What else, befor ei met her 2 yars ago she had a fiance , (a nepalese man), who also had visa for 12 years, but couldnt stay any longer, so he went home. Just about 2 hours ago this morning, after 2 loong years, i find out that she has been calling him every week for the last 2 years we have been together. Like 150 times in 2 years plus. So i am married with her in registry office this saturday, i cant live without her, she is all i have. mmmmmmm the story just goes on and on and on....(u know...he also gave her a car and diamonds etc etc)....i never did, i struggle to pay rent and food......