And what money would that be, does she have a job?
I am not a lawyer, but I think the idea behind the expectations of both partners getting some share of the family savings at the time of a divorce is that that a spouse without paid employment who has stayed at home to watch minor children has, in effect, made it possible for the other partner to work and accumulate the wealth s/he has. Thus, in normal proceedings, s/he would have some reasonable access to the family wealth accrued during his or her unpaid service in the home.
Now, that is in theory. So don't take it as an endorsement in this case, as I don't know the particulars, at all.
MOO.