I’m thinking about Divorce. What does the Catholic church say about divorce? How is it handled?
Jesus said, “What therefore God has joined together, let not man put asunder” (Mk 10:9). So, although the Catholic Church tolerates civil divorce in some circumstances (cf. Catechism 2383), the Church clearly teaches that divorce does not dissolve the marriage bond before God. Therefore, even in situations where civil divorce is tolerated, divorce does not free the spouses to marry again.
The Catechism of the Catholic Church explains: "[Divorce is] the claim that the indissoluble marriage bond validly entered into between a man and a woman is broken. A civil dissolution of the marriage contract (divorce) does not free persons from a valid marriage before God; remarriage would not be morally licit” (CCC glossary).
For more details see
The Sixth Commandment (esp. 2382-2386).