Humans are always looking for quick fixes, which inevitably leads to trouble. It is God, in His slow but steady approach, who teaches us to be patient, by not answering our prayers promptly and sending us trials that will purify us just as gold is purified in fire.
Marriage is a covenant for the sake of the husband and wife and their children (cf CCCC 338). Hence, it should have certain characteristics that guarantee the good of spouses and their offspring. These are: (1) unity; (2) indissolubility; (3) fidelity; and (4) openness to fertility and life (cf CCCC 495).
Of course, we all know that family life is not a bed of roses, but one can suffer in them, one can even fail in one’s attempt to build a family unit that brings stability to those involved. I am not among those who moralize towards those who experience failures, despite being well aware of what Catholic doctrine teaches. I understand that sometimes you have to accept the cross of failure and take responsibility for it before God and those directly involved. But the family cannot be reduced to its failure or to a strategy of deviant behavior. What kind of reasoning is this?