Condonation is the conditional forgiveness of a matrimonial offense constituting a cause of divorce. The following requirements are necessary to condonation:

Condonation implies a condition subsequent that the forgiving party must be treated with conjugal kindness. When the cause of divorce consists of a course of offensive conduct, or arises in cases of cruelty from successive acts of ill treatment, which aggregately may constitute the offense, cohabitation, or passive endurance, or conjugal kindness shall not be evidence of condonation of any of the acts constituting such cause, unless accompanied by an express agreement to condone. In such cases, condonation can be made only after the cause of divorce has become complete as to the acts complained of. A fraudulent concealment by the condonee of facts constituting a different cause of divorce from the one condoned and existing at the time of condonation avoids such condonation.