A person who willingly abandons their spouse for sinful reasons is probably not a Catholic who takes the faith seriously enough to be swayed by their pastor's admonishments or to be concerned about the sacramental consequences of their actions.| Catholic Review
In order to marry in the Catholic Church, a couple does need to be at least open to life in principle -- but it is not a requirement that children necessarily be foreseen as a realistic possibility in the intended union.| Catholic Review