It's not necessary for both partners to be in agreement about filing for divorce in order for it to be processed, but if neither partner proceeds with the application within six months of the reflection period ending (in other words, within a year of the start of the reflection period), the case is dismissed and the partners remain married. Each partner is considered to be responsible for their own financial situation after a divorce, but in certain circumstances it's possible to apply for financial support from the other partner during a transition period (see the relevant law, in Swedish, here).