a. at the time of separation, the marriage had lasted three years, including one year in the realm, b. parental responsibility for children of the EEA national has been transferred to the spouse who is not an EEA national under an agreement or judgment, c. the spouse who is not an EEA national, or any children, have been exposed to violence or other serious abuse in the marriage, or d. the spouse who is not an EEA national exercises visitation with children in the realm under an agreement or judgment.