Shin'yuu no Furin Aite wa, Otto deshita - Vol. 3 Ch. 21

[story645]

She is very clearly intending to save her own money, not take Rei's or the house hold's savings to do this.

It would be fair for her to want alimony or a settlement given she went down to part-time at his request, thereby losing out on yeh extra income/savings.