May 10

Should resentment or antipathy arise between husband and wife, he is not to divorce her but to bide in patience throughout the course of one whole year, that perchance the fragrance of affection may be renewed between them. If, upon the completion of this period, their love hath not returned, it is permissible for divorce to take place. God’s wisdom, verily, hath encompassed all things. 
(Baha’u’llah, The Kitab-i-Aqdas)