Sweden
Swedish law does not include a showing-of-fault requirement for divorce. The couple can file for divorce together or one party can file alone. If one party does not wish to get divorced or if they have children under 16 living at home there is a required contemplation period of 6 to 12 months. During this period they stay married and the request must be confirmed after the waiting period for the divorce to go through.
Read more about this topic: No-fault Divorce