IV. Offenses Against the Dignity of Marriage

From The Catechism of the Catholic Church

2386
It can happen that one of the spouses is the innocent victim of a divorce
decreed by civil law; this spouse therefore has not contravened the moral law.
There is a considerable difference between a spouse who has sincerely tried to
be faithful to the sacrament of marriage and is unjustly abandoned, and one who
through his own grave fault destroys a canonically valid marriage.¹⁷⁸

PART THREE: LIFE IN CHRIST

SECTION TWO THE TEN COMMANDMENTS
- CHAPTER TWO YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF
  - Article 6 THE SIXTH COMMANDMENT
    - IV. Offenses Against the Dignity of Marriage

From The Catechism of the Catholic Church – rosary.team