Donna,
There are lots and lots and lots of different factors involved in how a couple separating deal with their finances.
It depends on the dependant children, how old they are, if they have special needs etc
It also depends on the parent with care - her earnings, her earnings potential, how well she is able to work and care for the children.
It depends on the housing circumstances, the value of the house and the mortgage outstanding, the level of assets from the marriage, the level of debts, whether the debts were personal debts or marital debts.
It depends on the former husband's income, his housing needs, his pension, the length of the marriage.
It also depends on the judge and the relative legal representatives that both parties used to obtain the settlement.
In certain circumstances, it seems that the man doesn't walk away with much more than the clothes he is wearing.
But equally, for every case like that, there are as many that see mothers and children left homeless, unemployed, in poverty and debt, while the former husband enjoys a very comfortable lifestyle.
In order for someone to comment, it is necessary to understand the full circumstances of the case in the context of the factors detailed above.
On the surface it does seem unfair, but its like seeing the tip of an iceberg - there may be a lot more underneath.
If you want someone to give an opinion, post up those details, or feed them into the wikivorce calculator:
www.wikivorce.com/divorce/Divorce-Calculator-Start.html
Best of luck,
Mike