Question to Reasonable

What should I pay in Canada to my wife?

Mt wife wants to marry a guy in Virginia, USA. And she does not want me to supoort her, only support children. But I earn my salary in Regina, Saskachewan, Canada.

My (before Tax) salary is 44000 Canada $
per year. I have a 6 year old daughter and a 4 year old son and she wants to keep them all.

Thanks.