You have not lived in the same abode with your spouse for at least three years.
The confinement to a mental hospital must be for at least three years.
Cruelty by one spouse toward another can be a just cause for a divorce.
There must be sufficient evidence that a spouse had extra-marital intimate relations with another person (before or after the filing of the divorce complaint).
A spouse is convicted on felony charges and sentenced to serve at least 12 months in prison.
A spouse must leave voluntarily. It also requires that the couple has not cohabitated for at least one year.